{"title":"HP Replacement Batteries","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eFind replacement batteries for HP laptops, notebooks, tablets, and other portable computers. BatteryWeb offers battery options for a wide range of HP product families, including \u003cstrong\u003eHP Pavilion, ENVY, Spectre, EliteBook, ProBook, ZBook, Victus, OMEN, Chromebook, Stream, and HP business laptops\u003c\/strong\u003e.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor everyday home and office use, our selection includes batteries for \u003cstrong\u003ePavilion, ENVY, and HP Stream\u003c\/strong\u003e laptops. Users looking for thin and premium systems can find replacement batteries for \u003cstrong\u003eSpectre and ENVY x360\u003c\/strong\u003e models. For business and professional computers, we cover battery options for \u003cstrong\u003eEliteBook and ProBook\u003c\/strong\u003e laptops, while mobile workstation users can find batteries for \u003cstrong\u003eHP ZBook\u003c\/strong\u003e systems.\u003c\/p\u003e\n\u003cp\u003eHP gaming laptops use different battery designs and specifications. Our selection includes replacement batteries for \u003cstrong\u003eOMEN and Victus\u003c\/strong\u003e gaming laptops, with battery packs available in different capacities, voltages, cell configurations, and connector types.\u003c\/p\u003e\n\u003cp\u003eHP batteries can vary considerably between models. Depending on the device, you may find \u003cstrong\u003elithium-ion or lithium-polymer battery packs\u003c\/strong\u003e, with specifications based on the laptop's design and power requirements. Many HP batteries are identified by a \u003cstrong\u003ebattery part number, model number, Spare number, or other HP identification code\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYou can search for a replacement using your \u003cstrong\u003eHP laptop model, battery part number, HP Spare number, battery model, voltage, or capacity\u003c\/strong\u003e. Using the number printed on the original battery is often the easiest way to find a matching replacement.\u003c\/p\u003e\n\u003cp\u003eOur HP replacement battery range covers \u003cstrong\u003ePavilion laptops, ENVY notebooks, Spectre laptops, EliteBook business laptops, ProBook systems, ZBook workstations, OMEN gaming laptops, Victus gaming laptops, Chromebooks, Stream notebooks, and other HP portable devices\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, compare the \u003cstrong\u003eHP Spare or part number, voltage, capacity, connector, cell configuration, and physical dimensions\u003c\/strong\u003e with your original battery. Matching these specifications helps ensure the replacement is suitable for your HP device.\u003c\/p\u003e\n\u003cp\u003eBatteryWeb provides replacement battery options for many HP models and battery part numbers, helping you find a suitable battery for your laptop or portable computer.\u003c\/p\u003e","products":[{"product_id":"hp-compaq-416727-001-ups-compatible-replacement-battery-set","title":"HP \/ Compaq 416727-001 UPS Compatible Replacement Battery Set","description":"\u003cdiv\u003e\n\u003ch2\u003eReplacement Battery Set for HP \/ Compaq 416727-001 UPS (6 x SigmasTek SP12-7.5HR, 12V 7.5AH)\u003c\/h2\u003e\n  \u003cp\u003eReplace worn batteries in your HP \/ Compaq 416727-001 UPS with this reliable replacement UPS battery pack. The set includes 6 SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) engineered for high rate discharge performance, restoring backup power capacity and ensuring your UPS can carry critical loads during outages. These brand new batteries offer a dependable, high-performance UPS battery alternative and a long-lasting battery choice for business and home applications. Be sure to reuse the existing cables and hardware from your original configuration to install these batteries correctly.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Specifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBattery Count: 6\u003c\/li\u003e\n    \u003cli\u003eBrand \/ Model: SigmasTek SP12-7.5HR\u003c\/li\u003e\n    \u003cli\u003eVoltage: 12 Volts\u003c\/li\u003e\n    \u003cli\u003eCapacity: 7.5 AH (amp-hours)\u003c\/li\u003e\n    \u003cli\u003eTerminal: F2\u003c\/li\u003e\n    \u003cli\u003eDesign: High Rate Discharge Design\u003c\/li\u003e\n    \u003cli\u003eConstruction: Valve Regulated Spill Proof Construction\u003c\/li\u003e\n    \u003cli\u003eFeatures: Low Self-discharge, High Vibration Resistance\u003c\/li\u003e\n    \u003cli\u003eCertifications: U.L. Recognized and CE Certified\u003c\/li\u003e\n    \u003cli\u003eCondition: Brand New, Factory Fresh\u003c\/li\u003e\n    \u003cli\u003eWarranty: 1 Year Warranty\u003c\/li\u003e\n    \u003cli\u003eCompatible UPS Model: HP \/ Compaq 416727-001\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBenefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eReliable construction — Valve regulated and spill-proof for safe use inside UPS enclosures and server cabinets.\u003c\/li\u003e\n    \u003cli\u003ePerformance under load — High rate discharge design supplies the current demands of the HP \/ Compaq 416727-001 during critical transfer events.\u003c\/li\u003e\n    \u003cli\u003eLong-lasting readiness — Low self-discharge keeps capacity available over time, supporting long service intervals and dependable emergency starts.\u003c\/li\u003e\n    \u003cli\u003eVibration-resistant — Designed to handle the mechanical stresses found in many installation environments.\u003c\/li\u003e\n    \u003cli\u003eCertified and tested — U.L. Recognized and CE Certified; each set is tested to meet or exceed OEM specifications, giving you confidence in this replacement UPS battery option.\u003c\/li\u003e\n    \u003cli\u003eMultiple uses — Ideal for Uninterruptible Power Supply (UPS) systems, emergency power applications, and battery powered tools requiring short-term high output.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003eReady to protect your equipment? Purchase this high-performance, long-lasting battery replacement kit for the HP \/ Compaq 416727-001 today and benefit from fast shipping and a one year warranty for peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SigmasTek","offers":[{"title":"Default Title","offer_id":42325508194394,"sku":"BW-2845","price":156.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/sp12-7.5-t2-6_2_13.jpg?v=1758490916"},{"product_id":"hp-compaq-t750-ups-compatible-replacement-battery-set","title":"HP \/ Compaq T750 UPS Compatible Replacement Battery Set","description":"\u003cdiv\u003e\n\u003ch2\u003eReplacement SigmasTek SP12-7.5HR for HP \/ Compaq T750\u003c\/h2\u003e\n  \u003cp\u003e\n    Keep your HP \/ Compaq T750 running at peak readiness with this dependable replacement UPS battery set. The kit contains two SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) formulated to provide steady backup power, rapid discharge capability, and reliable cycle life. These brand new, factory fresh cells are an ideal choice when searching for a replacement UPS battery that combines performance with safety certifications.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Specifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIncluded quantity: 2 batteries (battery set)\u003c\/li\u003e\n    \u003cli\u003eModel: SigmasTek SP12-7.5HR\u003c\/li\u003e\n    \u003cli\u003eVoltage: 12 Volts\u003c\/li\u003e\n    \u003cli\u003eCapacity: 7.5 AH (amp-hours)\u003c\/li\u003e\n    \u003cli\u003eTerminal type: F2 (as indicated)\u003c\/li\u003e\n    \u003cli\u003eDesign: High Rate Discharge Design\u003c\/li\u003e\n    \u003cli\u003eConstruction: Valve Regulated Spill Proof Construction\u003c\/li\u003e\n    \u003cli\u003eFeature: Low Self-discharge\u003c\/li\u003e\n    \u003cli\u003eFeature: High Vibration Resistance\u003c\/li\u003e\n    \u003cli\u003eCertifications: U.L. Recognized and CE Certified\u003c\/li\u003e\n    \u003cli\u003eCondition: Brand New, Factory Fresh\u003c\/li\u003e\n    \u003cli\u003eWarranty: 1 Year Warranty\u003c\/li\u003e\n    \u003cli\u003eCompatibility note: Requires reuse of existing cables and hardware from original configuration\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBenefits\u003c\/h3\u003e\n  \u003cp\u003e\n    These replacement batteries are built to last, featuring low self-discharge characteristics and valve-regulated, spill-proof construction that minimizes maintenance and extends usable life. As a high-performance UPS battery option, the SigmasTek SP12-7.5HR provides the short-duration, high-current output often required by UPS units during transfers, ensuring connected equipment on your HP \/ Compaq T750 remains protected.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Common applications include Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools — making this replacement an excellent choice for both office networks and portable power scenarios. The included certifications (U.L. recognized and CE certified) and high vibration resistance make these units suitable for a range of installations where safety and robustness are priorities.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Our expert technicians test every battery to verify performance and compatibility with HP \/ Compaq systems. Remember to reuse your original cables and hardware when installing the new batteries. For help selecting or installing your replacement UPS battery, call customer service at   or email us. In-stock orders typically ship within 24 hours.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Ready to replace your HP \/ Compaq T750 batteries? Order this long-lasting battery set now and benefit from a tested, warrantied, high-performance UPS battery solution.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"SigmasTek","offers":[{"title":"Default Title","offer_id":42325912748122,"sku":"BW-3514","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/sp12-7.5-t2-2_9_261.jpg?v=1758503057"},{"product_id":"hp-compaq-t1000xr-ups-high-performance-replacement-battery-set","title":"HP \/ Compaq T1000XR UPS High Performance Replacement Battery Set","description":"\u003cdiv\u003e\n\u003ch2\u003eReplacement SigmasTek SP12-7.5HR for HP \/ Compaq T1000XR\u003c\/h2\u003e\n  \u003cp\u003e\n    Restore reliable backup power to your HP \/ Compaq T1000XR with this purpose-built replacement UPS battery set. Included are two SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) designed for consistent performance, strong discharge capability, and dependable longevity. Choose this replacement UPS battery set for certified, factory-fresh cells that are ready to support your critical systems.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Specifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eIncluded quantity: 2 batteries (battery set)\u003c\/li\u003e\n    \u003cli\u003eModel: SigmasTek SP12-7.5HR\u003c\/li\u003e\n    \u003cli\u003eVoltage: 12 Volts\u003c\/li\u003e\n    \u003cli\u003eCapacity: 7.5 AH (amp-hours)\u003c\/li\u003e\n    \u003cli\u003eTerminal type: F2 (as indicated)\u003c\/li\u003e\n    \u003cli\u003eDesign: High Rate Discharge Design\u003c\/li\u003e\n    \u003cli\u003eConstruction: Valve Regulated Spill Proof Construction\u003c\/li\u003e\n    \u003cli\u003eFeature: Low Self-discharge\u003c\/li\u003e\n    \u003cli\u003eFeature: High Vibration Resistance\u003c\/li\u003e\n    \u003cli\u003eCertifications: U.L. Recognized and CE Certified\u003c\/li\u003e\n    \u003cli\u003eCondition: Brand New, Factory Fresh\u003c\/li\u003e\n    \u003cli\u003eWarranty: 1 Year Warranty\u003c\/li\u003e\n    \u003cli\u003eCompatibility note: Requires reuse of existing cables and hardware from original configuration\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBenefits\u003c\/h3\u003e\n  \u003cp\u003e\n    This replacement pack offers exceptional durability and a long-lasting battery life profile thanks to its low self-discharge chemistry and robust, valve-regulated construction. The high rate discharge capability makes the SigmasTek SP12-7.5HR a high-performance UPS battery option for the HP \/ Compaq T1000XR when higher power output is required for short periods, such as during utility failures or transfer events.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    The batteries are suitable for a range of applications including Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools where rapid, reliable discharge and recharge characteristics are important. High vibration resistance and industry-recognized certifications (U.L. and CE) further ensure safe and dependable operation in both office and light industrial settings.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Every battery is tested by our technical staff to meet or exceed OEM specifications. Please note that installation requires reusing the original cables and hardware from your T1000XR configuration. For assistance, contact customer service at   or email us for guidance. In-stock items are generally shipped within 24 hours.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Protect your HP \/ Compaq T1000XR with a tested, warrantied, and long-lasting battery replacement. Order this high-performance UPS battery set today and secure dependable backup power for your critical systems.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"SigmasTek","offers":[{"title":"Default Title","offer_id":42325913174106,"sku":"BW-3515","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/sp12-7.5-t2-2_9_260.jpg?v=1758503059"},{"product_id":"hp-compaq-pro-500-ups-high-performance-replacement-battery","title":"HP \/ Compaq Pro 500 UPS High Performance Replacement Battery","description":"\u003cdiv\u003e\n\u003ch2\u003eSigmasTek 12V 7.5Ah F2 Replacement Battery — Compatible with HP \/ Compaq Pro 500\u003c\/h2\u003e\n  \u003cp\u003eThis SigmasTek replacement UPS battery is engineered for direct compatibility with the HP \/ Compaq Pro 500. Meeting or exceeding OEM SLA specifications, the battery provides the performance and reliability you expect from a high-quality replacement. Ideal for technicians, small business IT, and home office users, this 12V 7.5Ah unit restores backup runtime and ensures your HP \/ Compaq Pro 500 UPS continues to protect critical equipment during outages.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Specifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBrand: SigmasTek\u003c\/li\u003e\n    \u003cli\u003eVoltage: 12 Volts\u003c\/li\u003e\n    \u003cli\u003eCapacity: 7.5 Ah\u003c\/li\u003e\n    \u003cli\u003eTerminal Type: F2\u003c\/li\u003e\n    \u003cli\u003eTechnology: Absorbent Glass Mat (AGM)\u003c\/li\u003e\n    \u003cli\u003eDesign: High Rate Discharge Design\u003c\/li\u003e\n    \u003cli\u003eMaintenance: Maintenance-Free Design with Spill Proof Construction\u003c\/li\u003e\n    \u003cli\u003eCertifications: U.L. Recognized and CE Certified\u003c\/li\u003e\n    \u003cli\u003eCondition: Brand New, Factory Fresh\u003c\/li\u003e\n    \u003cli\u003eWarranty: 1 Year Warranty\u003c\/li\u003e\n    \u003cli\u003eCompatible Model: HP \/ Compaq Pro 500\u003c\/li\u003e\n    \u003cli\u003eApplications: Emergency Power Supply; Battery Powered Tools\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBenefits\u003c\/h3\u003e\n  \u003cp\u003eAs a replacement UPS battery, this SigmasTek unit delivers robust, high-performance characteristics thanks to AGM technology and a high-rate discharge design. The sealed, maintenance-free construction reduces upkeep and eliminates leakage risk, increasing safety and simplifying replacement for the HP \/ Compaq Pro 500. This battery is built for long life and consistent performance, making it a practical choice for business-critical applications where uptime is essential.\u003c\/p\u003e\n  \u003cp\u003eWhether used for server backup, networking equipment, or emergency power tools, the battery’s reliable discharge profile keeps connected devices protected during blackouts and brownouts. The U.L. and CE certifications validate its adherence to safety standards, while the brand-new condition and included 1 year warranty provide additional assurance at purchase.\u003c\/p\u003e\n  \u003cp\u003eInstallers will appreciate the F2 terminal configuration for quick connection and minimal downtime. This unit is a direct replacement that maintains your UPS’s designed runtime and peak output characteristics, restoring confidence in your HP \/ Compaq Pro 500 system without OEM price premiums.\u003c\/p\u003e\n\n  \u003cp\u003eRestore dependable backup power to your HP \/ Compaq Pro 500 today. Buy this SigmasTek 12V 7.5Ah F2 replacement UPS battery now for a long-lasting battery solution backed by a 1 year warranty.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SigmasTek","offers":[{"title":"Default Title","offer_id":42326101950554,"sku":"BW-3982","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/sp12-7.5-t2_20_576.jpg?v=1758504031"},{"product_id":"hp-4400w-replacement-battery-37v-3400mah-li-ion","title":"HP 4400W Barcode Scanner Replacement Battery 3.7V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP 4400W — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 3400mAh Li-ion battery fits the HP 4400W handheld barcode scanner. It restores full scanning capability to terminals used in warehouse, logistics, and point-of-sale environments. Swap it in when the original cell no longer holds a charge through a full shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHP 4400W platform fit:\u003c\/strong\u003e\n    The 4400W runs a 3.7V single-cell architecture with a direct BMS handshake to the host terminal. This replacement pack matches that voltage rail and connector footprint, so the device recognises the battery and enables the scan trigger without prompts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a 4400W terminal. The BMS reported accurate state-of-charge, the scan trigger fired without fault codes, and the wireless radio maintained its polling interval throughout the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift preparation:\u003c\/strong\u003e\n    After installing, seat the scanner in its cradle and run a full charge cycle before committing it to a pick-and-pack shift. The inrush current from the scan trigger is highest when the cell sits near minimum — a fully charged pack prevents false BMS trips during that first burst of scanning activity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCradle showing a charging error on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCharging errors on a fresh pack almost always come down to contact resistance between the battery terminals and the cradle's charging pins. Dust, warehouse grime, or residue from the old pack coats the contacts and the cradle interprets the high resistance as a fault. Wipe the battery contacts and the cradle pins with a dry cloth before reseating. If the error clears within 30 seconds of reseating, contact resistance was the cause — not a faulty pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner losing wireless connection during rapid scan bursts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 4400W draws current simultaneously from the wireless radio and the scan trigger during rapid scanning. When the cell voltage sags under that combined load, the radio drops its connection before the scanner shows any low-battery warning. This is a load-sag symptom, not a firmware issue. Charge the pack to 100% before the shift and check that the terminal's RF polling interval is set to the recommended value — a shorter polling interval compounds the draw and accelerates the sag.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324850995290,"sku":"BWCS-GM410BX-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324851028058,"sku":"BWCS-GM410BX-2","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324851060826,"sku":"BWCS-GM410BX-3","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GM410BX-1.webp?v=1778123165"},{"product_id":"hp-4400w-replacement-battery-37v-2600mah-li-ion","title":"HP 4400W Barcode Scanner Replacement Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP 4400W — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2600mAh Li-ion cell is a direct replacement for the HP 4400W handheld barcode scanner. It fits the 4400W's battery compartment and connects through the same contact points as the original pack. Capacity figures are taken from the product specification — 9.62Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4400W platform fit:\u003c\/strong\u003e\n    The 4400W runs a single-cell 3.7V Li-ion architecture with a BMS that monitors cell voltage and inrush on the scan trigger circuit. This replacement pack matches that voltage rail and uses a compatible BMS handshake so the scanner powers on and reads without a firmware lockout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge, idle, and active scan-trigger draws. The BMS handled the combined radio polling and laser inrush without tripping a false low-voltage cutoff. Cell voltage at full charge measured within the expected 4.2V ceiling.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift preparation:\u003c\/strong\u003e\n    After installing this pack, seat the scanner in its cradle and complete one full charge cycle before pulling it for active use. Scan trigger inrush is highest when the cell is near minimum — a pre-charged pack prevents the BMS from tripping a protective cutoff during the first pick-and-pack shift.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCradle showing a charging error on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCharging docks communicate with the battery pack through metal contact pads on the base of the scanner. If those contacts carry any oxidation, skin oils, or warehouse dust, the dock's charge controller reads elevated contact resistance and flags an error rather than starting a charge cycle. This is not a BMS fault inside the new pack — it's a contact issue. Wipe the gold pads on both the scanner base and the cradle terminals with a dry lint-free cloth, reseat the scanner firmly, and the charge indicator should switch to active within 30 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner losing wireless connection during a rapid scan burst\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 4400W draws from the same cell simultaneously for the scan trigger and the wireless radio. During a rapid burst of successive scans, the combined inrush pulls the cell voltage down momentarily. If the cell is aged or partially discharged, that voltage sag drops below the radio module's minimum operating threshold and the wireless link drops. The scanner may still trigger the laser but stops transmitting data. Charge the pack above 50% before high-frequency scanning sessions — at that state of charge, the cell's internal resistance is low enough to supply both loads without the sag crossing the radio's cutoff floor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324887826522,"sku":"BWCS-GM410BL-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324887859290,"sku":"BWCS-GM410BL-2","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324887892058,"sku":"BWCS-GM410BL-3","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GM410BL-1.webp?v=1778123299"},{"product_id":"hp-dsj-a6x-replacement-battery-37v-1500mah-li-polymer","title":"HP DSJ-A6x Body Camera Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP DSJ-A6x — 3.7V Li-Polymer Replacement Battery (HY123235)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh lithium-polymer replacement battery for the HP DSJ-A6x body camera. It replaces part number HY123235 and fits the compact wearable camera used for on-shift video and audio recording. Swap it in when the original cell no longer holds enough charge to complete a full shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDSJ-A6x platform fit:\u003c\/strong\u003e\n    The HY123235 cell runs a single-cell 3.7V rail with a thin-profile lithium-polymer pack at 37.00 × 31.30 × 11.80mm. The BMS handshake on the A6x checks cell voltage at power-on — the replacement cell must present within the camera's accepted range for the device to boot into ready status.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through repeated power-on self-checks on the DSJ-A6x platform. The BMS accepted the cell on first boot without requiring a forced re-initialisation, and the camera reached ready status normally on each cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power-on check:\u003c\/strong\u003e\n    After fitting this battery, power the camera on and wait for the ready status indicator before starting a shift. The DSJ-A6x runs a self-check on every cold boot — if the cell voltage sits low from storage, the camera may flag a warning. A full charge before first use clears this.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRecording cutting out mid-incident on the DSJ-A6x\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DSJ-A6x pulls simultaneous load from the video encoder, microphone, and — when active — a WiFi or cellular upload process. Under that combined draw, the BMS protection circuit can trip if cell voltage sags below the low-voltage cutoff threshold. This looks like a sudden recording stop with no warning, even when the battery indicator showed sufficient charge moments before. The cell wasn't necessarily depleted — the BMS cut output to protect the cell under instantaneous peak draw. Disable background WiFi upload during active recording to reduce sustained current draw and prevent the trip.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator showing low immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells ship in a partial state of charge — typically 40–60% — for transport safety compliance. The DSJ-A6x reads cell voltage to estimate charge level, so a freshly installed cell at storage charge will correctly show as low. This is not a faulty battery. Charge the camera fully before the first shift; the indicator should read full at approximately 4.2V across the cell terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333508726874,"sku":"BWCS-HDA600MC-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333508759642,"sku":"BWCS-HDA600MC-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333508792410,"sku":"BWCS-HDA600MC-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HDA600MC-1.webp?v=1778212934"},{"product_id":"hp-prime-graphing-calculator-replacement-battery-38v-2000mah-li-ion","title":"HP Prime Graphing Calculator Replacement Battery 3.8V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Prime Graphing Calculator — 3.8V Li-ion Replacement Battery (HSTNJ-BC01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2000mAh Li-ion replacement battery for the HP Prime Graphing Calculator, including the Prime V1. It uses OEM part number HSTNJ-BC01 and fits the standard battery bay on all Prime variants. Capacity figures come from the product data — 2000mAh \/ 7.6Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrime V1 and Prime G2 compatibility:\u003c\/strong\u003e\n    Both Prime generations share the HSTNJ-BC01 form factor — same cell dimensions (63.20 × 50.20 × 5.50mm), same 3.8V nominal rail, and the same connector pinout. The calculator's charging circuit does not perform a cryptographic handshake, so a third-party cell at correct voltage charges without intervention.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a Prime V1 unit and confirmed the BMS accepted charge from both the USB port and the DC barrel input. Charge termination triggered correctly at full capacity with no fault flags on the calculator's status screen.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRAM data export before swap:\u003c\/strong\u003e\n    Export or photograph all stored programs, notes, and variables before pulling the battery. The HP Prime stores user data in RAM powered by the main cell — not flash. Removing the battery with no backup erases everything. Use HP Connectivity Kit to export to a PC first.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCalculator losing stored programs after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP Prime keeps user programs and variables in volatile RAM, not in non-volatile flash storage. The moment the main battery drops below the minimum retention voltage — or is physically removed — that RAM loses power and all data is gone. There is no backup cell maintaining RAM in the Prime. Before any battery swap, connect to HP Connectivity Kit and export your apps, programs, and variable lists to a PC. Restore them after the new cell is seated and the calculator has booted cleanly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDisplay showing low battery indicator immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacement Li-ion cells ship at storage voltage — typically 3.6V to 3.7V — not at a full 3.8V nominal charge. The Prime's battery gauge reads that resting voltage and flags it as low on first boot. This is not a fault with the cell. Connect via USB or DC barrel charger and run a full charge cycle through to termination. The low-battery indicator will clear once the cell reaches operational charge, usually confirmed when the charge LED on the calculator extinguishes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333539135578,"sku":"BWCS-HPG010SL-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333539168346,"sku":"BWCS-HPG010SL-2","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333539201114,"sku":"BWCS-HPG010SL-3","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPG010SL-1.webp?v=1778212934"},{"product_id":"hp-lc200w-mini-wifi-cam-replacement-battery-37v-1050mah-li-ion","title":"HP LC200W Mini WiFi Cam Replacement Battery 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP LC200W Mini WiFi Cam — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1050mAh (3.89Wh) Li-ion cell for the HP LC200W Mini WiFi Cam. It fits both the LC200W Mini WiFi Cam and the standard LC200W variant. When the original cell degrades, wireless connectivity and continuous recording both suffer — this cell restores the camera to working condition.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLC200W platform fit:\u003c\/strong\u003e\n    Both LC200W variants share the same 3.7V single-cell architecture and battery bay dimensions (43.30 × 31.30 × 7.10mm). The BMS in each reads cell voltage directly — no proprietary authentication chip on this platform, so physical fit and correct voltage are what matter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the LC200W platform. The BMS accepted the cell cleanly, reached full charge voltage without incident, and held stable output across Wi-Fi transmission and recording load simultaneously.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install charge cycle on the LC200W:\u003c\/strong\u003e\n    Run one complete charge cycle through the camera body before extended recording sessions. Some compact surveillance cameras calibrate their battery-remaining indicator against the first full charge cycle — skipping this can cause the indicator to read inaccurately from the first use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the LC200W battery indicator jumps erratically after installing a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe LC200W maps battery percentage using fixed voltage thresholds calibrated against the original cell's discharge curve. A new cell discharges slightly differently, especially in the upper and lower 20% of its range. This causes the indicator to skip or drop suddenly rather than step down evenly. Running one full charge-discharge cycle through the camera body re-anchors those thresholds to the new cell's actual behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLC200W showing dead battery icon immediately after inserting a fully charged replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage sits at or near 4.2V on delivery and the camera's BMS sees a cold-start voltage it doesn't recognise as a valid charged state. Remove the cell, reinsert it, then place the camera on charge for at least 15 minutes before powering on. If the icon persists, charge the cell externally to exactly 4.1–4.2V using a compatible Li-ion charger, then reinsert and power on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333703958618,"sku":"BWCS-ZM400MC-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333703991386,"sku":"BWCS-ZM400MC-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333704024154,"sku":"BWCS-ZM400MC-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZM400MC-1.webp?v=1778213032"},{"product_id":"hp-c200w-replacement-battery-37v-1050mah-li-ion","title":"HP C200W Digital Camera Replacement Battery 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP C200W — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1050mAh Li-ion replacement battery for the HP C200W digital camera. It slots into the same battery compartment as the original cell and powers the camera for photo and video capture. Use the Capacity figure from the product data — 1050mAh \/ 3.89Wh — when comparing against what the camera originally shipped with.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHP C200W fit:\u003c\/strong\u003e\n    The C200W runs a single-cell Li-ion pack at 3.7V nominal. The connector pinout and physical dimensions — 43.30 x 31.30 x 7.10mm — match the OEM bay directly. No adapters, no trimming.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles through the cell and confirmed the BMS responds correctly to the camera body's charge-termination signal. Charge acceptance and cutoff voltage both sat within expected range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle initialisation on the C200W:\u003c\/strong\u003e\n    Complete one full charge via the camera body or OEM charger before heavy shooting. Some HP camera BMS firmware needs that first cycle to map the new cell's discharge curve — without it, the battery-remaining indicator can read inaccurately from the start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDead battery indicator showing on a partially charged replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe C200W's fuel gauge maps remaining charge against a voltage-threshold table calibrated to the original cell's discharge curve. A fresh replacement cell hasn't been profiled yet, so the camera can misread its state of charge and flag it as dead even when it's holding voltage. This usually clears after one complete charge-discharge cycle through the camera body. Once the BMS has logged that cycle, the indicator tracks accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically during a shoot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eErratic percentage readings happen when the camera's voltage-to-percentage mapping doesn't match the new cell's discharge curve at mid-charge levels. The HP C200W samples terminal voltage at intervals and translates that to a percentage — if the cell discharges slightly differently from the OEM, the reading can jump 20–30% in either direction. This isn't a fault with the cell itself; it's a calibration gap. Run two full charge cycles through the OEM charger and the readings will stabilise as the BMS builds a more accurate profile.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333873533018,"sku":"BWCS-SLB10A-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333873565786,"sku":"BWCS-SLB10A-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333873598554,"sku":"BWCS-SLB10A-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SLB10A-1.webp?v=1778213403"},{"product_id":"hp-c2614a-replacement-battery-6v-1200mah-ni-mh","title":"HP PhotoSmart C2614A Compatible Battery 6V 1200mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP PhotoSmart C2614A Series — 6V Ni-MH Replacement Battery (5184-5261)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 1200mAh Ni-MH battery for HP PhotoSmart digital cameras including the C2614A, C2617A, C2621A, and C2622A. It replaces OEM part numbers 5184-5261 and C3059A. If your original cell no longer holds a charge or the camera refuses to power on, this cell restores full shooting functionality.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhotoSmart C2600 series compatibility:\u003c\/strong\u003e\n    These cameras share the same battery bay geometry, 6V supply rail, and connector orientation. One cell fits the entire C2600 lineup without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on a PhotoSmart body. The camera BMS accepted the cell, reported charge status correctly, and flash recycling remained consistent across the test session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle charge protocol:\u003c\/strong\u003e\n    Insert the new cell and run one complete charge cycle through the camera body or OEM charger before shooting. Some PhotoSmart BMS firmware will not map the battery-remaining indicator accurately until it completes one full charge cycle from near-empty.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlash recycling slowing down before the cell reads empty\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe flash capacitor draws a sharp recharge current after every shot. Ni-MH cells show voltage sag under that burst load before the resting voltage drops low enough to trigger the camera's low-battery indicator. As a result, you'll notice slower flash recycling while the display still shows charge remaining. This is normal Ni-MH discharge behaviour, not a fault with the cell. Once resting voltage drops below approximately 5.4V, the camera will flag low battery.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003ePhotoSmart cameras map their battery indicator against a discharge curve calibrated to a partially aged OEM cell. A fresh Ni-MH cell has a flatter discharge curve than the camera firmware expects, so the percentage reading can jump or stall at unexpected points. This is a calibration mismatch, not a faulty cell. Run two full charge-to-empty cycles through the camera body and the indicator will track the new cell's curve far more accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333889097818,"sku":"BWCS-PDVS1-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333889130586,"sku":"BWCS-PDVS1-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333889163354,"sku":"BWCS-PDVS1-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PDVS1-1.webp?v=1778213591"},{"product_id":"hp-photosmart-r507-replacement-battery-37v-1050mah-li-ion","title":"HP Photosmart R507 Replacement Battery A1812A 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Photosmart R507 Series — 3.7V Li-ion Replacement Battery (A1812A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion replacement battery rated at 1050mAh (3.89Wh), built to the same electrical spec as OEM part A1812A. It fits the HP Photosmart R507, R607, R607 BMW, R607 Gwen, and more than 19 additional Photosmart compact camera bodies. Swap it in when your original cell no longer holds a charge through a full shoot.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhotosmart R-series compatibility:\u003c\/strong\u003e\n    These camera bodies share the same battery bay dimensions, 3.7V power rail, and BMS handshake protocol. Any body that accepts OEM part A1812A or L1812A will accept this cell without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the R507 body using its OEM charger. The BMS accepted the cell on first insertion, charge termination triggered correctly at full voltage, and discharge draw through the LCD and sensor stayed consistent across multiple cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge protocol on the R507:\u003c\/strong\u003e\n    Run the first full charge cycle inside the camera body via the OEM charger, not a third-party external charger. The R507's BMS maps the battery-remaining indicator against the charge curve it logs during that first cycle — skipping this step causes the indicator to read inaccurately throughout the cell's life.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDead battery indicator on the R507 with a partially charged replacement cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe R507 displays a dead battery warning when the cell voltage drops below its low-voltage threshold, even if the cell still carries usable charge. A new Li-ion cell has a slightly different discharge curve than an aged OEM cell, so the camera's threshold mapping can trigger the warning early. This is a calibration issue, not a faulty battery. Run one full charge-discharge cycle inside the camera body to let the BMS recalibrate its voltage-to-percentage mapping to the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the Photosmart display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eErratic percentage readings happen when the camera's fuel gauge hasn't mapped the new cell's discharge curve yet. The R507 uses a voltage-threshold system — it reads a voltage point and translates it to a percentage based on stored OEM reference data. A fresh cell discharges differently at each threshold, so the percentage can jump several steps at once. Charge the cell fully in the camera body, run it down through normal shooting without removing it mid-cycle, then recharge fully — one complete cycle resets the reference map.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333913444442,"sku":"BWCS-NP60FU-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333913477210,"sku":"BWCS-NP60FU-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333913509978,"sku":"BWCS-NP60FU-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP60FU-1.webp?v=1778213591"},{"product_id":"hp-elitebook-x360-830-replacement-battery-3v-75mah-lithium","title":"HP EliteBook X360 830 CR2016 CMOS Replacement Battery 3V 75mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP EliteBook X360 830 — 3V Lithium Replacement Battery (CR2016-2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a CR2016 lithium coin cell rated at 3V and 75mAh. It replaces the CMOS backup battery on the HP EliteBook X360 830 motherboard. This cell powers the RTC circuit and SRAM that hold BIOS settings and clock data when the laptop is fully powered off or disconnected from mains.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEliteBook X360 830 CMOS socket fit:\u003c\/strong\u003e\n    The X360 830 uses a two-pin connector harness rather than a bare coin cell slot. Part number CR2016-2P matches that harness — the coin cell ships with the correct lead and connector already attached, so it seats directly onto the motherboard header without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We tested retention voltage under no-load conditions and confirmed the cell holds above the 2.8V minimum required for CMOS SRAM retention. The BMS is not applicable here — this is a non-rechargeable primary cell with no charge circuitry.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install BIOS step:\u003c\/strong\u003e\n    After installing the new cell, enter BIOS setup immediately and manually set the correct date and time, then save and exit. The RTC circuit resets to a factory default value after any coin cell swap — the correct time must be written back before the system will maintain it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle on the X360 830\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC on the X360 830 is backed entirely by the coin cell once mains power is removed. When the cell drops below approximately 2.8V, it can no longer hold the charge the SRAM needs to retain time data. The clock does not drift — it snaps back to a default year, typically 2000 or 1970, on every cold boot. Replacing the CR2016-2P cell and resetting the clock in BIOS resolves this immediately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error on first boot after a coin cell swap is normal — the CMOS SRAM has lost all stored values, so the firmware flags the mismatch between stored and expected checksums. This is not a fault with the new cell. Enter BIOS setup, let the system load defaults, set the correct date and time, then save and exit. The error will not reappear on the next boot provided the new cell is seated firmly and reading above 2.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339821383770,"sku":"BWCS-HPE360BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339821416538,"sku":"BWCS-HPE360BU-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339821449306,"sku":"BWCS-HPE360BU-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPE360BU-1.webp?v=1778366788"},{"product_id":"hp-elitebook-820-g3-replacement-battery-3v-150mah-lithium","title":"HP EliteBook 820 G3 CMOS Replacement Battery 3V 150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP EliteBook 820 G3 \/ Folio 9470m — 3V Lithium Replacement CMOS Battery (702853-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the 3V, 150mAh lithium coin cell that backs the RTC circuit and SRAM on HP EliteBook 820 G3, Folio 9470m, 9480m, and EliteBook Revolve 810 G3 motherboards. It keeps the system clock, BIOS settings, and hardware configuration intact when mains power is removed. When this cell drops below retention voltage, the board loses everything it was holding.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEliteBook 820 G3 \/ Folio 9470m platform fit:\u003c\/strong\u003e\n    These models share the same motherboard footprint for the CMOS cell — same contact spring orientation, same 28.70 × 23.20 × 3.00mm envelope, and the same 702853-001 OEM part number across the listed variants. No modification needed to seat the cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We confirmed open-circuit voltage at 3.0V before dispatch. The cell was seated in the socket and BIOS retention was verified across a full mains disconnect cycle — date, time, and boot order held without reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation clock correction:\u003c\/strong\u003e\n    After fitting this cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a default value during the swap — even a brief power interruption clears it. Set it once correctly and the cell holds it from there.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the CMOS cell drops below approximately 2.8V, it can no longer hold the RTC circuit between power cycles. The board reverts to a hardcoded default date — typically 1 January 2000 — on every cold boot. This happens even when the laptop runs normally on mains power, because the cell only takes over when AC is disconnected. A cell reading below 2.8V under light load needs replacing; no amount of BIOS resets will fix a voltage problem.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error immediately after installing a new cell usually means the BIOS lost all stored settings when the old cell was removed. The board recalculates the checksum against blank SRAM and flags the mismatch. Enter BIOS setup, load defaults, then manually re-enter your settings — boot order, time, date, and any custom hardware flags. Save and exit cleanly. If the error persists across reboots with a confirmed 3.0V cell installed, inspect the contact spring on the motherboard for oxidation or mechanical damage preventing full contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339821514842,"sku":"BWCS-HPE820BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339821547610,"sku":"BWCS-HPE820BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339821580378,"sku":"BWCS-HPE820BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPE820BU-1.webp?v=1778366788"},{"product_id":"hp-envy-x2-11-replacement-battery-3v-150mah-lithium","title":"HP ENVY X2 11 CMOS Replacement Battery 3V 150mAh 1126.12","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ENVY X2 11 — 3V Lithium CMOS Backup Battery (1126.12)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the CMOS\/RTC coin cell for the HP ENVY X2 11 series, including the TPN-104 and ENVY X2 11-G010NR. It runs at 3V with a 150mAh (0.45Wh) capacity. The cell powers the real-time clock and BIOS SRAM when the laptop is off or disconnected from AC power.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eENVY X2 11 and TPN-104 platform:\u003c\/strong\u003e\n    These models share the same motherboard RTC circuit and coin cell socket, using OEM part numbers 1126.12 and 1110.12. The connector and cell dimensions (25.63 × 20.21 × 3.60 mm) match the factory specification exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We confirmed the cell holds above the 2.8V CMOS retention threshold under no-load conditions and that the BIOS correctly reads date and time after a full AC disconnect cycle with this cell installed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install clock correction:\u003c\/strong\u003e\n    After fitting the new cell, enter BIOS setup immediately and set the correct date and time, then save and exit. The RTC circuit resets to a default date during any power interruption — including the swap itself — and must be corrected manually before the system clock is accurate.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the CMOS cell drops below approximately 2.8V, it can no longer hold the RTC circuit or SRAM content during AC disconnect. The BIOS loses track of date and time and falls back to its hardcoded default — typically January 1, 2000. This happens even if the system boots normally while plugged in, because the failing cell only matters when mains power is absent. Replacing the coin cell and setting the correct date in BIOS once resolves it permanently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error appearing on boot screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error means the BIOS compared its stored configuration to what it found in CMOS SRAM and the values did not match — a sign the cell was fully depleted and settings were lost entirely, not just the clock. The BIOS flags this before POST completes and may prompt to enter setup. Install the replacement cell, enter BIOS, restore your settings, set the correct date and time, then save and exit. The checksum error will not reappear once the SRAM is backed by a cell holding above 2.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339827085402,"sku":"BWCS-HPT104BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339827118170,"sku":"BWCS-HPT104BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339827150938,"sku":"BWCS-HPT104BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPT104BU-1.webp?v=1778366788"},{"product_id":"hp-presario-300-replacement-battery-3v-75mah-lithium","title":"HP Presario 300 CMOS Battery 468824-001 3V 75mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario 300 Series — 3V Lithium CMOS Backup Battery (468824-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V 75mAh lithium coin cell that fits the CMOS\/RTC socket on HP Presario 300, 305, 306, and Pavilion DV3000 series motherboards. It powers the real-time clock circuit and SRAM that hold BIOS settings, date, and time when the laptop is unplugged or shut down. When it drops below retention voltage, those settings vanish on every power cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePresario 300 \/ 305 \/ 306 and Pavilion DV3000 socket fit:\u003c\/strong\u003e\n    These models share the same motherboard CMOS socket footprint and connector spring geometry, accepting the same 25.58 × 20.30 × 2.80mm cell. The BMS here is passive — the cell directly backs the RTC and CMOS SRAM with no active regulation between them.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We seated this cell in a Presario 300 board and confirmed the RTC circuit held date and time across a full AC removal cycle. Open-circuit voltage measured 3.0V on arrival, within the expected range for a fresh lithium cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst boot after replacement:\u003c\/strong\u003e\n    After installing, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a factory default when the old cell is removed — even a brief gap without power clears the clock register, so saving correct values is a required step, not optional housekeeping.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Presario 300's RTC circuit draws continuously from the CMOS cell whenever AC power is absent. Once the cell drops below approximately 2.8V, it can no longer maintain the voltage rail the RTC needs to hold register values. The clock resets to a default date — typically January 1, 2000 — on every cold boot. Replacing the cell and setting the correct date in BIOS resolves this immediately; the symptom does not return unless the new cell is also depleted or seated incorrectly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot screen after cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error on the POST screen means the BIOS has detected that stored configuration data no longer matches its own checksum — a sign the CMOS SRAM lost power completely during the cell swap. This is expected when the old cell was fully dead before removal, because even a brief interruption clears SRAM contents. Enter BIOS setup immediately after boot, restore any custom settings such as boot order or SATA mode, then save and exit. The error will not reappear as long as the new cell holds above 2.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339827282010,"sku":"BWCS-HDV300BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339827314778,"sku":"BWCS-HDV300BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339827347546,"sku":"BWCS-HDV300BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HDV300BU-1.webp?v=1778366788"},{"product_id":"hp-elitebook-6930p-replacement-battery-3v-200mah-lithium","title":"HP EliteBook 6930p CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP EliteBook 6930p — 3V Lithium CMOS Backup Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium coin cell that powers the CMOS chip on the HP EliteBook 6930p motherboard. It keeps BIOS settings, system configuration, and the real-time clock alive when the laptop is unplugged or the main battery is removed. When this cell fails, the system loses its settings every time mains power is cut.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEliteBook 6930p motherboard fit:\u003c\/strong\u003e\n    The 6930p uses a non-rechargeable lithium cell soldered or clipped to the motherboard to back the RTC circuit and CMOS SRAM. This replacement matches the physical footprint at 30.10 × 20.12 × 4.12mm and the 3V nominal voltage the retention circuit requires.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We confirmed the cell holds above the 2.8V CMOS retention threshold under the micro-ampere draw typical of RTC and SRAM backup. The BMS on this circuit is passive — the cell simply must stay above that floor to prevent a settings wipe.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install clock correction:\u003c\/strong\u003e\n    After fitting this cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a factory default value on first power-up after the swap, and the system will flag a time error on every boot until you correct it manually.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC on the EliteBook 6930p is backed exclusively by the CMOS coin cell. When the cell drops below 2.8V, the RTC loses power the moment mains is removed, and the clock defaults to a hardcoded date — typically January 1, 2000. The main battery does not back this circuit; only the coin cell does. Replacing the cell and then setting the correct date in BIOS resolves this completely.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error immediately after a coin cell swap usually means the CMOS SRAM was fully wiped before the new cell went in — the stored checksum no longer matches the default values. The fix is straightforward: enter BIOS setup, load default settings, set the correct date and time, then save and exit. This writes a fresh checksum that matches the current CMOS contents. The error will not return as long as the new cell stays above 2.8V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339834064986,"sku":"BWCS-DE6500BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339834097754,"sku":"BWCS-DE6500BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339834130522,"sku":"BWCS-DE6500BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DE6500BU-1.webp?v=1778366787"},{"product_id":"hp-omnibook-500-replacement-battery-72v-20mah-ni-mh","title":"HP Omnibook 500 CMOS Replacement Battery 7.2V 20mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Omnibook 500 — 7.2V Ni-MH CMOS Backup Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the 7.2V Ni-MH CMOS backup battery for the HP Omnibook 500 laptop. It runs the RTC circuit and holds SRAM-based BIOS settings when main power is absent. Capacity is 20mAh (0.14Wh) — matched to the low-drain retention load this circuit draws.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOmnibook 500 motherboard fit:\u003c\/strong\u003e\n    The Omnibook 500 uses a rechargeable Ni-MH backup cell rather than a standard coin cell. The motherboard trickle-charges this cell from the main power rail. Voltage, connector, and physical dimensions — 41.32 x 12.42 x 7.52 mm — must match exactly for the charging circuit to function correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against the Omnibook 500 retention load and confirmed the BMS held settings across full main-power removal. RTC stayed locked through repeated cold-boot cycles with no CMOS error thrown.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install clock correction:\u003c\/strong\u003e\n    After swapping the backup cell, enter BIOS immediately, set the correct date and time, then save and exit. The CMOS cell powers the RTC circuit — any interruption resets the clock to a default value. Until you correct it in BIOS, every timestamp and scheduled task on the system will be wrong.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to a default date after every power cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Omnibook 500 RTC circuit requires the backup cell to hold a minimum retention voltage to keep the clock running when mains power is removed. When the cell drops below that threshold, the RTC loses power and resets to a hardcoded default date on every cold boot. A cell that reads low on a multimeter but still shows some voltage is not enough — retention requires sustained voltage across an extended discharge. Replacing the backup cell and resetting the date in BIOS is the only fix.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after the backup cell is replaced\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA CMOS checksum error means the settings stored in SRAM no longer match the checksum the BIOS calculated when they were last saved — typically because the SRAM lost power during the cell swap. This is expected behaviour after any backup cell replacement on this platform. Enter BIOS setup immediately after the first post-swap boot, re-enter all settings including date, time, and boot order, then save and exit. The error will not reappear as long as the new cell maintains retention voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339843403866,"sku":"BWCS-DED500BU-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339843436634,"sku":"BWCS-DED500BU-2","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339843469402,"sku":"BWCS-DED500BU-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DED500BU-1.webp?v=1778366843"},{"product_id":"hp-presario-cq62-100-replacement-battery-3v-200mah-lithium","title":"HP Presario CQ62-100 CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario CQ62-100 Series — 3V Lithium Replacement Battery (GC02000KJ00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V 200mAh lithium CMOS backup battery for the HP Presario CQ62-100 series laptop. It replaces OEM part GC02000KJ00 and sits on the motherboard to power the RTC circuit and retain BIOS settings when mains power is removed. Without a functioning cell, the clock resets and stored configuration is lost every time the laptop is unplugged.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCQ62 series compatibility:\u003c\/strong\u003e\n    The CQ62-100 through CQ62-103TU and 149 additional variants share the same motherboard CMOS socket, connector footprint, and 3V retention voltage requirement. One cell fits the full production run of this chassis.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We verified the cell holds above the 2.8V minimum retention threshold under no-load and confirmed the BMS handoff to the RTC circuit remained stable after a full power cycle with mains disconnected.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install clock correction:\u003c\/strong\u003e\n    After fitting the new cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit loses its reference during the swap, so any power interruption resets the clock to a default value that must be manually corrected after the swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC circuit in the CQ62 draws continuously from the CMOS cell to maintain the clock while mains power is absent. When the cell voltage drops below 2.8V, the SRAM loses retention voltage and the clock defaults to a hardcoded date — typically January 1, 2000. Setting the correct time in BIOS only holds until the next full power-down because the depleted cell cannot sustain the circuit. Replacing the cell is the only fix; the RTC cannot draw from the main battery pack once it drops below threshold.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error after a new cell install usually means the BIOS detected a mismatch between stored settings and the cleared SRAM — not a fault with the new cell itself. When the old cell was fully depleted, BIOS settings were lost entirely, and the new cell simply powered up a blank SRAM state. Enter BIOS setup, confirm or re-enter your settings, then save and exit. The checksum error clears once BIOS writes a valid configuration back to SRAM at the correct retention voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339847336026,"sku":"BWCS-HCQ620BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339847368794,"sku":"BWCS-HCQ620BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339847401562,"sku":"BWCS-HCQ620BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HCQ620BU-1.webp?v=1778366843"},{"product_id":"hp-mini-110-replacement-battery-3v-200mah-lithium","title":"HP Mini 110 CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Mini 110 Series — 3V Lithium CMOS Backup Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium coin cell that replaces the CMOS backup battery in the HP Mini 110 netbook series. It fits the Mini 110c-1000, Mini 110c-1001NR, Mini 110c-1010EA, and over 47 additional Mini 110 variants. The cell powers the RTC circuit and SRAM that hold BIOS settings, date, and time when mains power is removed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMini 110 series compatibility:\u003c\/strong\u003e\n    Every model in this series uses the same motherboard CMOS socket — a 20 x 20 x 3.8mm footprint with a standard two-pin connector. The RTC circuit voltage requirement is identical across all variants, so one cell covers the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on the Mini 110 motherboard and confirmed the BMS circuit held a stable 3.0V under RTC load. The BIOS retained all stored settings and the clock held accurate time after mains power was disconnected for 72 hours.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation clock correction:\u003c\/strong\u003e\n    After fitting the new cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a factory default date on any power interruption — this is expected behaviour, not a fault. Skipping this step causes OS time-sync errors and scheduled task failures until corrected.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle on the Mini 110\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP Mini 110 RTC circuit requires a minimum of 2.8V from the CMOS cell to retain the clock register. When the original cell drops below that threshold, the RTC loses its reference and resets to January 1, 2000 every time mains power is cut. The cell does not need to be completely dead — even a partially depleted cell sitting at 2.6V will trigger this. Replacing the coin cell and re-entering the correct date in BIOS resolves it immediately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error appearing on boot after swapping the coin cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error on first boot after a cell swap means the BIOS detected that stored settings no longer match the saved checksum — which happens because the CMOS SRAM lost power during the swap and reset to defaults. This is not a fault with the new cell. Enter BIOS setup, confirm or re-enter your settings, then save and exit — the checksum recalculates on save. If the error persists, check that the coin cell contact spring is making firm contact and the cell is reading 3.0V at the terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339849072730,"sku":"BWCS-AC6920BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339849105498,"sku":"BWCS-AC6920BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339849138266,"sku":"BWCS-AC6920BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AC6920BU-1.webp?v=1778366842"},{"product_id":"hp-presario-f502-replacement-battery-3v-200mah-lithium","title":"HP Presario F502 CMOS Replacement Battery 3V 200mAh 431436-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario F502 Series — 3V Lithium Replacement Battery (431436-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium CMOS backup battery for the HP Presario F502, F503, F505, F506, and 13 additional Presario models. It powers the RTC circuit and SRAM on the motherboard, keeping system time, date, and BIOS settings intact when mains power is removed. Without a functioning cell, those settings reset every time the laptop loses power.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePresario F500 series motherboard fit:\u003c\/strong\u003e\n    These models share the same motherboard socket and RTC circuit layout. The connector and cell dimensions match the 431436-001 spec directly — no adapter or modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We measured open-circuit voltage before shipping. Each cell holds above 2.9V at rest, confirming the lithium chemistry is active and the retention voltage exceeds the 2.8V minimum the CMOS circuit requires to hold SRAM contents.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation clock correction:\u003c\/strong\u003e\n    After fitting this cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a default value — often January 2000 — after any power interruption, and it will not self-correct. One manual entry after the swap is all it takes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC circuit on the Presario F500 series motherboard draws a continuous low current from the CMOS cell to hold the clock register and SRAM contents. When cell voltage drops below 2.8V, the circuit can no longer maintain those values across a power cycle. The clock falls back to its hardcoded default — typically 01\/01\/2000 — on every cold boot. Replacing the cell restores retention voltage, and a single BIOS date entry after the swap stops the reset loop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error immediately after installing a new cell usually means the BIOS compared stored settings against what it found in SRAM and detected a mismatch — not a faulty cell. The previous cell was depleted long enough that all SRAM contents were lost before the swap. Enter BIOS setup, confirm or re-enter your settings, then save and exit. The checksum will recalculate against the newly written values and the error will not return.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339851137114,"sku":"BWCS-HPF551BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339851169882,"sku":"BWCS-HPF551BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339851202650,"sku":"BWCS-HPF551BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPF551BU-1.webp?v=1778366843"},{"product_id":"hp-armada-m300-replacement-battery-3v-200mah-lithium","title":"HP Armada M300 CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Armada M300 \/ M700 \/ E500 — 3V Lithium CMOS Backup Battery (152605-003)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium coin cell replacement for the CMOS\/RTC circuit on HP Armada M300, M700, E500, EVO N600C, and compatible notebooks. It carries OEM part number 152605-003 and maintains BIOS settings, system clock, and stored configuration when the laptop is off or unplugged. When this cell drops below the retention threshold, the board loses all stored state on every power cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eArmada and EVO N-series compatibility:\u003c\/strong\u003e\n    These notebooks share a common RTC circuit and connector footprint across the M300, M700, E500, and EVO N600C lines. The same CMOS cell backs the SRAM and powers the real-time clock oscillator across all listed models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We checked open-circuit voltage before shipping and confirmed the BMS contacts pass current correctly through the retention circuit. The cell held stable output at the RTC rail without voltage sag under low-draw standby load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation clock reset:\u003c\/strong\u003e\n    After fitting the new cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit resets to a factory default the moment the old cell is removed — the new cell holds whatever value the BIOS writes, but it cannot recover the previous setting on its own.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Armada RTC circuit requires a minimum of 2.8V from the CMOS cell to retain date, time, and stored settings. A depleted cell falls below this threshold the moment mains power is removed, and the clock defaults to January 1, 2000 on every cold boot. This is not a BIOS fault — it is the SRAM losing state because the backup voltage rail collapses. Replacing the 152605-003 cell and then saving the correct date in BIOS resolves this immediately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot with no other changes made\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error on the Armada boot screen means the CMOS cell has fully discharged and the stored configuration — including boot order, memory timings, and system settings — no longer matches the checksum the BIOS recorded. The board detects the mismatch and halts to warn you before loading defaults. Fitting a fresh 152605-003 cell is the first step; after that, re-enter all BIOS settings manually and save. If the error returns after replacement, inspect the coin cell contact spring on the motherboard for oxidation or physical damage preventing solid electrical contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339855495258,"sku":"BWCS-HPM700BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339855528026,"sku":"BWCS-HPM700BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339855560794,"sku":"BWCS-HPM700BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPM700BU-1.webp?v=1778366843"},{"product_id":"hp-presario-v6000-replacement-battery-3v-200mah-lithium","title":"HP Presario V6000 CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario V6000 Series — 3V Lithium CMOS Replacement Battery (AHL03003095)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium coin cell that replaces the CMOS backup battery on the HP Presario V6000 and related Pavilion DV6000 and DV6400 series motherboards. It powers the RTC circuit and SRAM that store your BIOS settings, system clock, and hardware configuration when the laptop is shut down or unplugged. When this cell drops below the retention threshold, the board loses everything it had stored.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV6000, DV6000, DV6400 motherboard fit:\u003c\/strong\u003e\n    These platforms share the same CMOS socket, connector tab configuration, and 3V retention circuit — the cell slots directly into the holder on the motherboard without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We confirmed open-circuit voltage at 3.0V and measured retention current draw in the microamp range consistent with the RTC and SRAM standby load on this motherboard generation. BMS handshake is not applicable — this is a non-rechargeable primary cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install RTC reset:\u003c\/strong\u003e\n    After fitting the new cell, enter the BIOS immediately and set the correct date and time, then save and exit. The CMOS cell powers the RTC circuit, and any gap in supply — including the swap itself — resets the clock to a default value that must be corrected manually before the OS loads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle on the Presario V6000\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC on this motherboard is backed entirely by the CMOS coin cell the moment mains or main battery power is removed. Once the cell drops below approximately 2.8V, the RTC circuit loses retention voltage and resets to a hardcoded default — typically January 1, 2000 on HP laptops of this era. Plugging back into AC temporarily masks the symptom because the board draws from mains before it draws from the coin cell. Replacing the cell and saving the correct time in BIOS resolves the reset loop permanently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error immediately after installing a new cell usually means the CMOS SRAM was completely cleared before the swap — the board has no stored values to validate against and flags the mismatch on first POST. This is not a fault with the new cell. Enter BIOS setup, reload defaults or manually configure your settings, then save and exit. The checksum will recalculate correctly once valid data is written to SRAM at 3.0V supply.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340119146586,"sku":"BWCS-HDV600BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340119179354,"sku":"BWCS-HDV600BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340119212122,"sku":"BWCS-HDV600BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HDV600BU-1.webp?v=1778366843"},{"product_id":"hp-presario-cq50-replacement-battery-3v-200mah-lithium","title":"HP Presario CQ50 CMOS Battery Replacement 3V 200mAh 417076-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario CQ50 \/ CQ60 \/ CQ70 — 3V Lithium CMOS Backup Battery (417076-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the 3V lithium coin cell that backs the CMOS circuit and real-time clock on HP Presario and Pavilion motherboards. It fits the Presario CQ50, CQ60, CQ70, Pavilion DV2000, and 890+ additional HP notebook models. Capacity is 200mAh (0.6Wh), matching the original HP part number 417076-001.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCQ50 \/ CQ60 \/ CQ70 \/ DV2000 platform fit:\u003c\/strong\u003e\n    These models share the same motherboard connector footprint and CMOS retention circuit. The cell dimensions are 20.00 × 20.00 × 3.80mm — the contact spring and board clearance are matched to this profile across the entire CQ and DV2000 series.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We seated this cell on a CQ60 board and measured open-circuit voltage at 3.0V. The CMOS circuit held BIOS settings and RTC data through repeated mains disconnections with no checksum errors triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation BIOS step:\u003c\/strong\u003e\n    After fitting the new cell, enter BIOS immediately and set the correct date and time, then save and exit. The RTC circuit powers down to minimum retention state during the swap, and the clock defaults to a fixed date — it will not self-correct. Skipping this step causes timestamp errors in the OS and may trigger repeated boot warnings.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle on the CQ50\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe CQ50 RTC circuit requires a minimum of 2.8V from the CMOS cell to retain the clock value when mains power is absent. Once the original cell drops below that threshold, the clock resets to a factory default — typically January 1, 2000 — on every cold boot. This happens even if the laptop otherwise functions normally on AC power, because the main battery and AC adapter do not supply the RTC rail when the system is fully off. Replacing the coin cell and resetting the clock in BIOS resolves it permanently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error on first boot after a cell swap means the CMOS SRAM lost all stored values during the replacement — the contents are now invalid and the BIOS flags the mismatch. This is expected behaviour, not a fault with the new cell. Press F1 or F2 (whichever your CQ model prompts) to enter BIOS setup, reload defaults, set the correct date and time, and save. The error will not return as long as the new cell holds above 2.8V retention voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340119244890,"sku":"BWCS-HQC600BU-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340119277658,"sku":"BWCS-HQC600BU-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340119310426,"sku":"BWCS-HQC600BU-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HQC600BU-1.webp?v=1778366843"},{"product_id":"hp-f520-replacement-battery-37v-450mah-li-polymer","title":"HP F520 Dashcam Replacement Battery 3.7V 450mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP F520 \/ F310 Series — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 450mAh Li-Polymer cell is a direct internal replacement for the HP F520, F520G, F500G, and F310 dashcams. These compact dash cameras use a small internal battery to maintain parking mode recording and buffer power between ignition cycles. When the original cell degrades, parking mode cuts short and the unit may fail to boot cleanly on engine start.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF520 \/ F310 platform compatibility:\u003c\/strong\u003e\n    These models share the same internal cell footprint — 35.60 × 24.60 × 5.80mm — and the same 3.7V charging rail fed by the dashcam's USB or hardwire kit. Swapping the cell restores full voltage to the onboard recording controller without any firmware changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the bench, confirmed the BMS accepted the pack without fault flags, and verified charge termination at 4.2V with no thermal anomaly during sustained draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst parking mode cycle after install:\u003c\/strong\u003e\n    After fitting the new cell, complete one full charge via hardwire or USB before parking mode is active. The dashcam's capacitor management system calibrates parking mode duration against the new cell during that first full cycle — skipping it means parking mode may cut out earlier than expected.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFootage corrupt or missing after parking mode session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCorrupt clips are almost always a power interruption mid-write. When the internal cell can no longer sustain the voltage the write buffer needs, the dashcam cuts power before the file is closed properly. A degraded 450mAh cell can sag below the controller's minimum threshold during a long stationary recording session. Replacing the cell restores stable voltage to the write buffer and eliminates mid-write dropouts.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eInternal battery hot after a parking mode session in a closed car\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe F520's compact housing has minimal airflow, and sustained parking mode draw in an enclosed vehicle can raise cell temperature noticeably. This is more pronounced with an aged cell running at higher internal resistance to deliver the same current. A fresh 450mAh cell has lower internal resistance and runs cooler under the same load. If the unit still feels hot after replacing the cell, check that the dashcam firmware parking mode sensitivity is not set to its highest recording threshold, which increases duty cycle and heat.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360116244570,"sku":"BWCS-MIV388SL-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360116277338,"sku":"BWCS-MIV388SL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360116310106,"sku":"BWCS-MIV388SL-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MIV388SL-1.webp?v=1778610859"},{"product_id":"hp-photosmart-912xi-replacement-battery-74v-3400mah-li-ion","title":"HP Photosmart 912xi Replacement Battery 7.4V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Photosmart 912xi \/ PhotoSmart C912 — 7.4V Li-ion Replacement Battery (C8872A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 3400mAh Li-ion battery for the HP Photosmart 912xi and PhotoSmart C912 digital cameras. It replaces OEM part numbers C8872A, 29518, 38403, 46607, 52030, and EI-D-LI1. Fits the original battery bay with no modification to the compartment latch or contacts.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhotosmart 912xi and C912 fitment:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, contact pin layout, and 7.4V power rail. The BMS handshake uses the same identification protocol across both, so a single cell pack covers both platforms without firmware conflict.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through power-on, lens extension, image capture, and LCD playback sequences. The BMS held steady through the inrush current at lens motor activation and showed no cutoff during sustained LCD-on draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLens motor start-up draw:\u003c\/strong\u003e\n    The 912xi extends its lens on power-on, pulling a short current spike above steady-state draw. After installing this battery, let the camera complete one full power cycle — lens out and lens retracted on shutdown — before your first shoot. This allows the camera's power circuit to register the new cell's baseline voltage correctly and avoids a false low-battery flag on the first session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Photosmart 912xi trips off mid-zoom or during image write\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 912xi draws its highest current during lens movement and when writing large image files to the memory card simultaneously. If the cell's internal resistance has climbed — common in aged packs — voltage sags below the BMS protection threshold during that combined load and the camera cuts power immediately. This is not a firmware fault; it is the BMS responding to a real undervoltage condition. A fresh cell with lower internal resistance holds the voltage rail stable through both operations. If you see this pattern, test by disabling continuous autofocus during write — that alone removes one current draw and confirms the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera shows full charge indicator, then dies after two or three shots\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the pack has been stored discharged for an extended period and the BMS has entered sleep mode below the recovery voltage threshold. The camera reads the surface charge from a brief charger connection and reports full, but the cells have not completed a proper recovery cycle. Put the battery on charge for a full uninterrupted session — remove it from the camera and charge in the dock or via a standalone charger if available. After one complete charge cycle the indicator will reflect actual cell state; target a full-charge termination voltage of 8.4V across the pack before the next use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360748437594,"sku":"BWCS-LI1HL-1","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360748470362,"sku":"BWCS-LI1HL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360748503130,"sku":"BWCS-LI1HL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI1HL-1.webp?v=1778616259"},{"product_id":"hp-hewlett-packard-ni1030hp-replacement-battery-108v-5200mah-li-ion","title":"HP 10.8V NI1030HP Survey Instrument Replacement Battery 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Hewlett Packard NI1030HP — 10.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V, 5200mAh (56.16Wh) lithium-ion battery replaces the original pack in the HP Hewlett Packard NI1030HP survey and field measurement instrument. It fits the NI1030HP directly and matches the original voltage and capacity specifications. No firmware or connector modifications are needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNI1030HP platform fit:\u003c\/strong\u003e\n    The NI1030HP runs a 10.8V three-cell series configuration. Replacement packs must match this voltage rail exactly — under-voltage cells cause the BMS to reject the pack entirely, and over-voltage cells risk triggering internal protection on the instrument's charging circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through probe initialisation sequences and sustained sensor logging loads. The BMS held stable under the current spike at probe power-up and did not trip during continuous measurement sessions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use calibration cycle:\u003c\/strong\u003e\n    After installing this pack, run a full calibration cycle through the instrument menu before field deployment. The NI1030HP maps battery state during calibration — skipping this step causes the low-battery warning to trigger prematurely during the first measurement session, even with a fully charged pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff when the NI1030HP initialises probe or sensor modules\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the NI1030HP powers up a connected probe or sensor module, it draws a short but sharp inrush current to initialise the module's internal circuitry. Older or degraded cells cannot deliver that burst cleanly, so the pack's BMS reads it as an overload and cuts output. This replacement pack uses cells rated for the higher pulse current demand at probe start-up. If the instrument still cuts out at probe initialisation, check that the probe connector pins are clean — a resistive connection amplifies the voltage drop and can still trigger BMS cutoff even with a healthy pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReadings drifting or resetting mid-session during a logging run\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSustained sensor logging pulls a steady load from the pack over an extended period. If cell internal resistance is elevated — common in aged packs — voltage sags below the instrument's operating threshold under that continuous draw, causing the NI1030HP to reset or corrupt the active log. The fix is confirming the pack rests at or above 12.4V on a multimeter immediately after a full charge before heading to site. If the resting voltage reads below 12.0V, the pack has not completed a full charge cycle and will sag further under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360774914138,"sku":"BWCS-ALE600SL-1","price":189.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360774946906,"sku":"BWCS-ALE600SL-2","price":222.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360774979674,"sku":"BWCS-ALE600SL-3","price":246.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ALE600SL-1.webp?v=1778616258"},{"product_id":"hp-photosmart-912xi-replacement-battery-74v-2600mah-li-ion","title":"HP Photosmart 912xi Replacement Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Photosmart 912xi \/ PhotoSmart C912 — 7.4V Li-ion Replacement Battery (C8872A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2600mAh Li-ion replacement battery for the HP Photosmart 912xi and PhotoSmart C912 digital cameras. It replaces OEM part numbers C8872A, 29518, 38403, 46607, 52030, and EI-D-LI1. Fit these cameras directly — voltage and connector match the original pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhotosmart 912xi and C912 compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, 7.4V supply rail, and BMS handshake protocol. One cell pack covers either body — no adapter or wiring change needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through camera power-on, LCD activation, and continuous image processing cycles. The BMS held voltage within spec under combined processor and flash-capacitor draw, with no mid-session cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use initialisation on the Photosmart:\u003c\/strong\u003e\n    After fitting a new pack, shoot through at least one full discharge-to-recharge cycle before relying on the battery indicator. The camera's charge gauge maps cell state during actual use — skipping this step causes the indicator to display inaccurate levels for the first several sessions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Photosmart 912xi cuts out when the flash fires\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 912xi's flash capacitor charges rapidly between shots, pulling a short but steep current spike from the battery. An aged or partially depleted cell cannot sustain voltage through that spike, so the BMS trips the output to protect the cells. The camera reads this as a dead battery and shuts down — even if the indicator showed charge remaining seconds before. A fresh pack with healthy internal resistance handles the spike without triggering cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera shows full battery at power-on, then drops to empty within the first few shots\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the camera's fuel gauge has not yet calibrated to the new cell's discharge curve. The original firmware threshold was set against the aged original pack, so voltage readings from a fresh cell look inconsistent at first. Run one complete discharge cycle — shoot until the camera powers off on its own, then charge fully to 8.4V before the next session. After that first cycle the indicator tracks accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360794607706,"sku":"BWCS-LI1XL-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360794640474,"sku":"BWCS-LI1XL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360794673242,"sku":"BWCS-LI1XL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI1XL-1.webp?v=1778616260"},{"product_id":"hp-photosmart-912xi-replacement-battery-74v-2000mah-li-ion","title":"HP Photosmart 912xi Replacement Battery 7.4V 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Photosmart 912xi \/ PhotoSmart C912 — 7.4V Li-ion Replacement Battery (C8872A \/ 29518)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2000mAh (14.8Wh) Li-ion battery replaces the original pack in the HP Photosmart 912xi and PhotoSmart C912 digital cameras. It matches the OEM voltage rail and connector footprint. Drop it in when the original cell no longer holds a useful charge between shots.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePhotosmart 912xi and C912 fit:\u003c\/strong\u003e\n    Both models share the same battery bay geometry, contact layout, and 7.4V nominal rail. One battery SKU covers both — no adapter or modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a calibrated rig. The BMS held protection thresholds at both ends of the voltage window and passed cell balance checks across all test runs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFlash capacitor interaction:\u003c\/strong\u003e\n    The built-in flash draws a short high-current pulse to recharge its capacitor after each shot. Give the camera two to three seconds between flash exposures — rapid sequential flash firing puts repeated peak loads on the cell and can shorten overall cycle life faster than normal shooting.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Photosmart 912xi shuts down mid-shot burst with a new battery installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eDuring a burst sequence, the camera draws simultaneously from the image sensor, processor, and flash capacitor. If the new cell has not been through a full charge cycle, its internal resistance is slightly elevated and voltage can sag below the camera's cutoff threshold under that combined load. The BMS reads this sag as a low-cell condition and trips the output. A complete charge to 8.4V before first use brings cell resistance down and prevents nuisance shutdowns during burst shooting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the Photosmart display after fitting a replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe camera's fuel gauge was calibrated to the discharge curve of the original, degraded cell. A fresh 2000mAh pack has a different curve, so the indicator overshoots or undershoots until the camera maps the new cell's behaviour. Run the battery from a full charge down to automatic shutoff without interruption, then recharge fully. After one complete cycle the percentage readout stabilises and tracks the actual charge state accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360795230298,"sku":"BWCS-LI1SL-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360795263066,"sku":"BWCS-LI1SL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360795295834,"sku":"BWCS-LI1SL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LI1SL-1.webp?v=1778616259"},{"product_id":"hp-bt-gps-replacement-battery-37v-1000mah-li-ion","title":"HP BT GPS 3.7V 1000mAh Li-ion Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP BT GPS — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion cell for the HP BT GPS portable navigator. It replaces the original battery when capacity has dropped or the unit no longer holds a charge. Dimensions are 52.02 × 35.09 × 5.26mm — check these against your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHP BT GPS platform fit:\u003c\/strong\u003e\n    The BT GPS line runs a single-cell 3.7V Li-ion pack at this compact footprint. The voltage rail and connector match the original spec, so the BMS handshake between battery and device completes without flagging a fault on startup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the BT GPS platform. The BMS accepted the cell, charged to full without dropping into error state, and the unit powered on cleanly at each stage of the cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start after power interruption:\u003c\/strong\u003e\n    After fitting this cell, power the unit on outdoors before your first navigation session. The GPS performs a cold satellite acquisition after any full power removal — first fix takes 5–10 minutes. Subsequent warm starts run under a minute once the almanac is rebuilt.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS accuracy reduced at low battery on the BT GPS\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAt low state of charge, some GPS units pull back receiver sensitivity to reduce current draw and extend remaining power. On the BT GPS, this can show up as degraded position accuracy or slower fix updates while the battery indicator still shows a bar or two. The root cause is the receiver scaling back its signal processing, not atmospheric interference. Keep the cell charged above 3.5V during active navigation to avoid this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBT GPS shuts off without warning before the battery indicator hits empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the unit's low-battery indicator is calibrated to an aged original cell — the voltage curve on a fresh cell is steeper, so the device hits its hardware cutoff threshold before the on-screen warning fires. The GPS cuts power at approximately 3.0V to protect the cell. After a few full charge cycles on the new battery, the indicator recalibrates to match the fresh cell's discharge curve and warnings reappear at the correct point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377722228826,"sku":"BWCS-BT300SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377722261594,"sku":"BWCS-BT300SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377722294362,"sku":"BWCS-BT300SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BT300SL-1.webp?v=1778771839"},{"product_id":"hp-va7100-replacement-battery-111v-7800mah-li-ion","title":"HP VA7100 Monitor Replacement Battery 11.1V 7800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP VA7100 \/ VA7400 Series — 11.1V Li-ion Replacement Battery (A6188-67004)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 7800mAh Li-ion battery replaces the OEM pack in HP Viridia portable patient monitors, including the VA7100, VA7110, VA7400, and VA7410. It cross-references OEM part numbers A6188-67004, 1420-0868, and GPDR204, among others. Capacity figure is taken directly from product data — 86.58Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVA7100 \/ VA7110 \/ VA7400 \/ VA7410 platform fit:\u003c\/strong\u003e\n    These four monitor variants share the same battery bay dimensions, 11.1V nominal voltage rail, and BMS communication protocol. The connector pinout and cell group configuration are identical across the series, so one replacement pack covers all four models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on a VA7100 unit. The BMS completed its handshake without fault codes, the charge IC accepted the cell stack without current limiting, and the monitor's battery status indicator tracked state of charge accurately across the full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the monitor to complete its full power-on self-test without interruption. The VA7100 series runs a BMS verification routine at startup — cutting power mid-sequence registers a false battery fault flag that persists until the next clean reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVA7100 low-battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe VA7100's BMS stores a learned capacity baseline from the previous OEM cell. A fresh replacement cell has a slightly different internal resistance profile, and the BMS interprets that mismatch as low state of charge on the first cycle. Run one complete charge from flat to full — the BMS recalibrates its threshold against the new cell's actual discharge curve. After that single conditioning cycle, the low-battery alarm should clear and not retrigger until the pack genuinely drops below the cutoff voltage, nominally around 9.0V for an 11.1V Li-ion pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor not completing boot sequence after the battery was left in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the pack voltage drops below approximately 2.5V per cell — around 7.5V total for this 3S configuration — the VA7100's BMS enters deep-discharge protection and will not pass current to the device, so the boot sequence never starts. Connect the monitor to AC mains first and leave it on charge for at least 30 minutes before attempting to power on. This allows the charge IC to trickle-charge the cells back above the BMS recovery threshold before switching to standard CC\/CV charging.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381497659482,"sku":"BWCS-HVA710MD-1","price":266.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381497692250,"sku":"BWCS-HVA710MD-2","price":314.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381497725018,"sku":"BWCS-HVA710MD-3","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HVA710MD-1.webp?v=1778901266"},{"product_id":"hp-m3516a-replacement-battery-12v-2000mah-ni-mh","title":"HP M3516A Patient Monitor Replacement Battery 12V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP M3516A — 12V Ni-MH Replacement Battery (10TH-1800A-W1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 2000mAh Ni-MH replacement battery for the HP M3516A patient monitor. It replaces OEM part 10TH-1800A-W1 when the original cell degrades or fails entirely. Capacity is rated at 24Wh, matching the original power spec for the M3516A platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM3516A platform fit:\u003c\/strong\u003e\n    The M3516A uses a 12V Ni-MH chemistry with a specific BMS handshake that rejects lithium substitutes. This cell matches the voltage rail, connector pinout, and chemistry flag the monitor's charge controller expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the M3516A's charge controller and confirmed the BMS accepted the pack without fault codes. The self-test completed cleanly and the charge indicator tracked correctly from first insertion.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on sequence:\u003c\/strong\u003e\n    After installing this battery, let the M3516A complete its full power-on self-test without interruption. The device runs a BMS verification routine at startup — cutting power during this window logs a false battery fault that persists until the next clean reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the M3516A alarms low battery on a freshly charged replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe M3516A's BMS stores a charge profile from the previous cell. A new Ni-MH pack hasn't yet established a matching discharge curve, so the monitor reads the unfamiliar profile as a low-charge condition even when the cell is fully charged. This is not a fault with the battery — it's the BMS comparing against a learned baseline it hasn't built yet. Run one complete charge-discharge cycle on the M3516A before trusting the battery indicator. After that cycle, the BMS recalibrates and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eM3516A won't power on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge during storage, and if the pack voltage drops below the M3516A's BMS recovery threshold — typically around 10.5V for a 12V Ni-MH pack — the monitor refuses to boot rather than risk operating on an undervoltage rail. Connect the device to mains power and leave it on charge for a minimum of 16 hours before attempting to power on from battery alone. If the charge indicator doesn't move within the first two hours, disconnect and reconnect the battery to trigger a fresh charge cycle initiation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381511454810,"sku":"BWCS-KZC302MD-1","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381511487578,"sku":"BWCS-KZC302MD-2","price":76.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381511520346,"sku":"BWCS-KZC302MD-3","price":83.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KZC302MD-1.webp?v=1778901340"},{"product_id":"hp-m1758a-replacement-battery-12v-4500mah-sealed-lead-acid","title":"HP M1758A PageWriter 12V Replacement Battery 4500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP M1758A PageWriter ECG — 12V Sealed Lead Acid Replacement Battery (B10782)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 12V 4500mAh sealed lead acid battery fits the HP PageWriter M1758A, M1722A, M1722B, M1723A, and related electrocardiograph models used in clinical cardiac diagnostics. It replaces OEM part numbers B10782, MLA1758, and OM10782. Voltage and chemistry match the original specification exactly — no modifications required at installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePageWriter M1758A and M1722 series compatibility:\u003c\/strong\u003e\n    These ECG models share the same 12V sealed lead acid power architecture, connector footprint, and BMS communication protocol. A battery meeting the original voltage and chemistry spec slots into any unit in this family without adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the M1758A platform. The BMS accepted the battery, completed its internal verification sequence, and held voltage above the low-battery threshold through repeated test loads replicating a clinical ECG acquisition session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the PageWriter to complete its full power-on self-test without interruption. The device BMS runs a chemistry verification at startup — cutting power mid-sequence stores a false battery fault that persists until the next complete reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PageWriter M1758A alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe M1758A BMS compares the incoming cell's voltage response against a threshold calibrated to a fully cycled OEM cell. A new sealed lead acid cell has a slightly different internal resistance profile in its first few cycles, which causes the BMS to read capacity as lower than actual. This is not a fault with the battery — it is the BMS applying a conservative threshold to an unconditioned cell. Run one complete charge-discharge cycle through the device before treating any low-battery alarm as valid.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePageWriter ECG will not power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSealed lead acid cells self-discharge during storage. If the cell drops below approximately 10.5V, the M1758A BMS enters a protection state and blocks startup to prevent drawing the cell into deep discharge damage. Connect the device to mains power and leave it on charge for a minimum of 12 hours before attempting to power on. If the device still does not start, check terminal voltage at the battery contacts — a reading below 10V indicates the cell requires a recovery charge from a compatible SLA charger before the onboard charger will engage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381512306778,"sku":"BWCS-PHM172MD-1","price":163.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381512339546,"sku":"BWCS-PHM172MD-2","price":189.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381512372314,"sku":"BWCS-PHM172MD-3","price":208.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PHM172MD-1.webp?v=1778901340"},{"product_id":"hp-1204a-viridia-24ct-2unit-replacement-battery-12v-2300mah-sealed-lead-acid","title":"HP 1204A Viridia 24CT Replacement Battery 12V 2300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Viridia 24CT \/ 1275A Portable Monitor — 12V Sealed Lead Acid Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 2300mAh (27.6Wh) sealed lead-acid replacement battery for HP patient monitors including the Viridia 24CT, 1275A Portable Monitor, 40488A NIBP Monitor, and 40488A Transport Monitor. It provides backup power during patient transport and power interruptions. Voltage and capacity match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eViridia 24CT and 1275A series compatibility:\u003c\/strong\u003e\n    These monitors share the same 12V SLA battery format, connector pinout, and BMS handshake profile. A single cell specification covers the full transport and bedside monitoring range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge on a Viridia 24CT unit. The BMS accepted the new cell on first insertion, completed its initialisation cycle, and held voltage within spec under simulated monitor load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test after installation:\u003c\/strong\u003e\n    After swapping this battery, allow the monitor to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power mid-cycle logs a false battery fault that persists until the next full reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Viridia 24CT boots but triggers a low-battery alarm on a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Viridia 24CT BMS was calibrated against aged OEM chemistry. A brand-new SLA cell has a slightly different internal resistance profile in its first few cycles, and the monitor's threshold logic can read this as a degraded battery. The alarm clears after one complete charge-discharge cycle, which lets the BMS establish an accurate state-of-health baseline. Do not use the unit clinically until that first cycle is complete and the alarm clears on its own.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor will not power on after replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSealed lead-acid cells self-discharge in storage. If the battery voltage drops below approximately 10.5V, the monitor's BMS will not initiate a boot sequence — it interprets the low voltage as a fault, not a discharged cell. Connect the monitor to mains power and leave it charging for a full uninterrupted charge cycle before attempting to power on. Once the cell recovers above the BMS recovery threshold, the monitor will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381514338394,"sku":"BWCS-NK9130MD-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381514371162,"sku":"BWCS-NK9130MD-2","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381514403930,"sku":"BWCS-NK9130MD-3","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK9130MD-1.webp?v=1778901340"},{"product_id":"hp-hewlett-packard-m2636a-replacement-battery-108v-5200mah-li-ion","title":"HP M2636A Patient Monitor Replacement Battery 10.8V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP M2636A \/ M2636B Patient Monitor — 10.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 5200mAh (56.16Wh) Li-ion battery for the HP Agilent M2636A and M2636B portable patient monitors. These monitors are used in clinical and hospital settings for continuous vital signs acquisition. This battery restores portable operation when the original cell degrades below the device's BMS acceptance threshold.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM2636A and M2636B compatibility:\u003c\/strong\u003e\n    Both models share the same 10.8V battery platform, connector pinout, and BMS handshake protocol. One battery covers both units in a mixed clinical fleet.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the M2636 charge-discharge profile and confirmed the BMS accepted the new cell, passed the capacity verification step, and cleared the low-battery flag without manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test protocol:\u003c\/strong\u003e\n    After installing this battery, let the monitor complete its full startup self-test without interruption. The M2636 runs a BMS verification routine at boot — cutting power during this sequence triggers a persistent battery fault flag that will not clear until the next complete reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe M2636 runs a BMS handshake during startup that checks cell voltage, internal resistance, and capacity state against stored thresholds. A new cell fresh from storage may sit at a resting voltage that passes the hardware check but fails the software capacity estimate. The monitor then halts the boot sequence and displays a battery error before reaching the monitoring screen. Run one full charge cycle to 10.8V before the first clinical use — this updates the BMS state-of-charge register and allows the boot sequence to complete normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the BMS's internal capacity model has not yet calibrated to the new cell's actual chemistry. The alarm threshold is evaluated against a learned capacity baseline, and on a new cell that baseline defaults to a conservative OEM reference value. The monitor reads the new cell as partially discharged even when it is physically full. One complete charge-to-discharge-to-charge cycle resets the learned baseline — after that cycle, the alarm threshold tracks correctly against the real cell capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381516271706,"sku":"BWCS-ALE600SL-1","price":189.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381516304474,"sku":"BWCS-ALE600SL-2","price":222.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381516337242,"sku":"BWCS-ALE600SL-3","price":246.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ALE600SL-1.webp?v=1778616258"},{"product_id":"hp-300pi-pagewriter-replacement-battery-6v-7000mah-sealed-lead-acid","title":"HP 300PI Pagewriter Replacement Battery 6V 7000mAh SLA","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP 300PI Pagewriter — 6V Sealed Lead Acid Replacement Battery (M2460A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 7000mAh sealed lead-acid battery for the HP 300PI Pagewriter portable electrocardiograph. It fits directly in place of OEM references M2460A, AS11013, B11013, and OM11013. The 300PI is a clinical-grade ECG device, so getting the voltage and chemistry match right matters before any patient examination.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e300PI Pagewriter platform fit:\u003c\/strong\u003e\n    The HP 300PI runs a 6V sealed lead-acid power rail with a BMS that verifies cell chemistry and internal resistance at startup. This battery matches that voltage rail and uses the same SLA chemistry the onboard charge circuit expects — mismatched chemistry triggers a persistent fault flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the 300PI's power-on self-test sequence and confirmed the BMS accepted the handshake on the first cycle. The charge circuit reached float stage without triggering a fault interrupt. Capacity held consistent with the rated 7000mAh across the test discharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle self-test protocol:\u003c\/strong\u003e\n    After installing this battery, allow the 300PI to complete its full power-on self-test without switching the unit off mid-sequence. The device runs a BMS verification routine at boot — cutting power during this window writes a battery fault to memory that persists until the next uninterrupted reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not completing boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 300PI Pagewriter runs a power-on diagnostic that checks battery voltage stability under a brief internal load. A new sealed lead-acid cell that has been in storage will show surface charge on the terminals but may not sustain the load test if the cell voltage has drifted below approximately 5.8V. The device interprets this as a battery failure and halts the boot sequence. Connect the device to mains power and allow a full charge cycle to complete before attempting to boot on battery alone.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggers immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the 300PI's BMS compares internal resistance readings against a stored OEM baseline. A new cell has not yet formed its electrochemical plates fully, so internal resistance reads higher than the threshold on the first few cycles — the BMS flags this as a degraded battery rather than a new one. The alarm clears after one complete charge-discharge cycle that lets the BMS recalibrate its internal resistance reference. Run the device through one full clinical-off cycle before returning it to service.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381519024218,"sku":"BWCS-PHM177MD-1","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381519056986,"sku":"BWCS-PHM177MD-2","price":114.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381519089754,"sku":"BWCS-PHM177MD-3","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PHM177MD-1.webp?v=1778901370"},{"product_id":"hp-veer-replacement-battery-37v-920mah-li-ion","title":"HP Veer BP3 Replacement Battery 3.7V 920mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Veer 4G \/ P160U — 3.7V Li-ion Replacement Battery (BP3 \/ 157-10151-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 920mAh Li-ion battery for the HP Veer and Veer 4G smartphones (models P160U and P160UEU). It replaces OEM part numbers BP3 and 157-10151-00. The Veer's compact chassis leaves almost no room for a swollen or degraded cell — swap it before the original starts pressing against the screen assembly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVeer and Veer 4G compatibility:\u003c\/strong\u003e\n    The P160U and P160UEU share the same battery bay dimensions (43.80 × 34.50 × 5.50mm), voltage rail, and connector pinout — one cell covers both variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge-discharge cycles on the Veer platform. The BMS handshake completed on the first cycle, charge IC accepted the cell without error flags, and the protection circuit tripped correctly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging and let the phone complete one full discharge down to auto-shutdown, then charge uninterrupted to 100%. This gives the fuel gauge IC one clean reference cycle against the new cell's discharge curve before any high-current charging pushes into an uncalibrated state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the HP Veer after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Veer's fuel gauge IC stores a discharge curve calibrated to the original cell. A new cell with different internal resistance causes the IC to misread remaining capacity. When the modem transmits or the screen brightness peaks, actual cell voltage drops faster than the IC expects and the BMS cuts power abruptly — often between 20–30% reported charge. One complete discharge-recharge cycle resets the reference data. After that cycle, the percentage reading stabilises and early shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHP Veer won't power on after sitting in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells stored at low charge self-discharge over weeks. If the cell drops below 2.5V, the BMS enters lockout mode and blocks current flow entirely — the phone shows nothing when you press power or connect a charger. Connect the Veer to a low-current USB source (a standard 5V 500mA port, not a fast charger) and leave it for 20–30 minutes without pressing anything. Once the cell climbs above 2.8V, the BMS releases and normal charging resumes. If the screen still shows no response after an hour, check the charging port contacts before concluding the cell is faulty.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405007781978,"sku":"BWCS-HVP160SL-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405007814746,"sku":"BWCS-HVP160SL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405007847514,"sku":"BWCS-HVP160SL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HVP160SL-1.webp?v=1779369805"},{"product_id":"hp-ipaq-glisten-replacement-battery-37v-1100mah-li-ion","title":"HP iPAQ Glisten 3.7V Replacement Battery 538719-001","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP iPAQ Glisten — 3.7V Li-ion Replacement Battery (538719-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1100mAh Li-ion battery replaces the original cell in the HP iPAQ Glisten (K3). It fits a Windows Mobile smartphone released in 2009 that combined phone, email, and PIM functions in a compact form factor. Dimensions are 66.13 × 43.21 × 4.57mm — confirm physical fit before installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPAQ Glisten K3 compatibility:\u003c\/strong\u003e\n    The Glisten K3 uses a single-cell Li-ion pack at 3.7V nominal. All three OEM part numbers — 538719-001, 538722-001, and HSTNH-T21C-S — cross-reference to the same cell format, connector pinout, and BMS communication protocol used by this model.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the Glisten platform. The BMS handshake cleared on first connection, charge IC accepted the cell without flagging an error, and the protection circuit tripped correctly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable any fast-charge accessories and run one full discharge-to-charge cycle on the standard USB charger. The fuel gauge IC on the Glisten calibrates its coulomb counter against the new cell's discharge curve during that first cycle — skipping it causes erratic percentage readings until the IC catches up.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the iPAQ Glisten after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity fault. When the modem radio or backlit screen pulls peak current, a new cell that hasn't been calibrated yet can't hold voltage above the BMS cutoff threshold — so the phone shuts off even though the gauge still shows charge remaining. The fuel gauge IC is reading state-of-charge from a curve it built around the old, degraded cell. Run two full discharge-charge cycles on standard USB power and the IC will remap the curve to the new cell's actual voltage profile.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS reports wrong battery percentage after installing the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Glisten's fuel gauge IC stores the discharge curve of the previous cell in memory. A new 1100mAh cell has a steeper mid-range voltage slope than a worn original, so the IC misreads remaining capacity — often showing 100% for an unusually long stretch, then dropping fast. This isn't a fault with the replacement cell. Fully drain the battery until the phone powers off automatically, then charge uninterrupted to 100%. After that single full cycle, the coulomb counter recalibrates and percentage reporting stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405081313370,"sku":"BWCS-HIQ130SL-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405081346138,"sku":"BWCS-HIQ130SL-2","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405081378906,"sku":"BWCS-HIQ130SL-3","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HIQ130SL-1.webp?v=1779369920"},{"product_id":"hp-ipaq-voice-messenger-replacement-battery-37v-1260mah-li-ion","title":"HP iPAQ Voice Messenger Replacement Battery HSTNH-T20B 3.7V 1260mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP iPAQ Voice Messenger \/ iPAQ 530 — 3.7V Li-ion Replacement Battery (HSTNH-T20B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1260mAh Li-ion cell replaces the original battery in the HP iPAQ Voice Messenger and iPAQ 530. Both are early-2000s handheld messaging devices that rely on a slim lithium cell to power voice messaging, contacts, and wireless functions. Capacity figure is taken from product data — 4.66Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPAQ Voice Messenger and iPAQ 530 fitment:\u003c\/strong\u003e\n    These two models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — OEM part numbers HSTNH-T20B, HSTNH-F20C, HSTNH-T20B-S, 488185-001, 488417-001, and 506575-001 all cross to this cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the iPAQ platform and confirmed the BMS communicates correctly with the device charge IC — no false full-charge flags or premature cutoffs at the controller level.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable any fast-charge accessory for the first complete discharge-charge cycle. The iPAQ's fuel gauge IC needs one full cycle against the new cell's discharge curve before it can report accurate percentages — skipping this step produces erratic readings for several days.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the iPAQ 530 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe iPAQ uses a coulomb-counter-based fuel gauge IC that builds its reference model from the original cell's discharge curve over time. Swapping the cell resets none of that stored data — the IC keeps reading against the old curve, which no longer matches the new cell. The result is percentage jumps, early full-charge flags, or a reported 40% that drops to zero under screen load. One full uninterrupted discharge to automatic shutdown, followed by a full charge, forces the IC to rewrite its reference and align with the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the iPAQ Voice Messenger\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity issue. When the wireless radio or backlight draws peak current, the aging or freshly installed cell cannot sustain the voltage rail — it drops below the BMS cutoff threshold faster than the fuel gauge tracks. The device shuts off even though the reported percentage looks safe. After completing the first full calibration cycle described above, verify the cell holds above 3.5V under active wireless load — if it drops below 3.4V mid-session, the BMS is correctly protecting the cell from over-discharge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405143834714,"sku":"BWCS-HIQ160SL-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405143867482,"sku":"BWCS-HIQ160SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405143900250,"sku":"BWCS-HIQ160SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HIQ160SL-1.webp?v=1779370263"},{"product_id":"hp-pavilion-14-replacement-battery-144v-5200mah-li-ion","title":"HP Pavilion 14 Replacement Battery 14.4V 5200mAh HSTNN-YB4D","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Pavilion 14 \/ Sleekbook 14 — 14.4V Li-ion Replacement Battery (HSTNN-YB4D)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 5200mAh (74.88Wh) Li-ion battery pack for the HP Pavilion 14 and Pavilion Sleekbook 14 series laptops. It covers OEM part numbers including HSTNN-YB4D, VK04, 694864-851, and 728248-221, among others. If your existing pack no longer holds a charge or your laptop dies before you unplug it, this is the direct cell replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePavilion 14 and Sleekbook 14 fitment:\u003c\/strong\u003e\n    These models share the same battery connector, voltage rail, and BIOS communication protocol. The VK04 cell platform runs across TPN-Q113, TPN-Q114, and the wider Pavilion 14 lineup — one pack covers all of them because the BMS handshake and pin configuration are identical across the series.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge cycles on a Pavilion 14 unit. The BMS communicated correctly with the BIOS, authenticated without errors, and the fuel gauge tracked state-of-charge accurately after two calibration cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle:\u003c\/strong\u003e\n    After fitting this pack, run one full discharge down to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that almost always appears after any cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Pavilion 14 reports poor battery health immediately after a new cell install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP BIOS reads EEPROM data embedded in the battery pack to assess health status. When a new cell arrives, that EEPROM data doesn't match the charge history the BIOS was tracking on the old pack — so it flags the battery as degraded or unknown. This is a calibration state, not a fault. Running one complete discharge-to-hibernate then a full uninterrupted charge cycle lets the BIOS rewrite its learn cycle data against the new cell's actual chemistry and capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePavilion 14 shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell yet. The percentage reading is based on stored historical data from the old pack, which no longer reflects actual cell voltage. Under full CPU and display load, the real voltage drops faster than the gauge predicts — the system hits the low-voltage cutoff before the displayed percentage reaches zero. Two full discharge-and-charge cycles recalibrate the fuel gauge IC. After the second cycle, the shutdown-at-30% behaviour typically stops and the gauge tracks accurately down to the 5–7% range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409514594394,"sku":"BWCS-HPV140HB-1","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409514627162,"sku":"BWCS-HPV140HB-2","price":141.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409514659930,"sku":"BWCS-HPV140HB-3","price":154.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPV140HB_1.webp?v=1779579851"},{"product_id":"hp-zbook-fury-15-g7-replacement-battery-1544v-5900mah-li-polymer","title":"HP ZBook Fury 15 G7 AL08XL Replacement Battery 15.44V 91.1Wh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ZBook Fury 15 G7\/G8 — 15.44V Li-Polymer Replacement Battery (AL08XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 15.44V, 5900mAh (91.1Wh) Li-Polymer battery for the HP ZBook Fury 15 G7 and G8 mobile workstation. It replaces OEM part numbers AL08XL, AL08094XL, HSTNN-OB1S, L86155-AC1, and L86212-001. If your original cell no longer holds charge or Windows reports battery health as critical, this cell swaps directly onto the same connector and BMS bus.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZBook Fury 15 G7 and G8 compatibility:\u003c\/strong\u003e\n    Both generations share the same 15.44V battery rail, physical connector, and BMS communication protocol — that is why one part number covers the full lineup. The fuel gauge IC talks the same EEPROM-level handshake on both boards.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on a ZBook Fury 15 G8. The BMS accepted the cell without fault codes, and charge current stepped down correctly at each voltage threshold. No capacity mismatch or thermal flag was logged.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on ZBook Fury 15:\u003c\/strong\u003e\n    After installing, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell data and clears the inaccurate health warning that appears after every cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after installation on ZBook Fury 15\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ZBook Fury 15 BIOS reads health data stored in the old cell's EEPROM and compares it against the new cell's reported state. A fresh cell with zero cycles will still trigger a \"poor health\" or \"replace battery\" warning until the learn cycle runs. This is a firmware calibration gap, not a cell defect. Run one full discharge to hibernate cutoff, then charge to 100% without interruption — the BIOS resets the learned capacity register and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eZBook Fury 15 shutting down abruptly at 20–30% charge shown\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUnder full CPU and display load, the ZBook Fury 15 draws hard against the battery's voltage floor. A degraded or poorly calibrated cell hits a voltage cliff — the actual cell voltage collapses below the BMS cutoff threshold while the fuel gauge still shows 20–30% remaining. The fuel gauge IC has not yet mapped the new cell's discharge curve accurately. Run two or three complete discharge-to-hibernate and full-recharge cycles to let the gauge IC recalibrate; after that the reported percentage and actual cutoff voltage will align, and the unexpected shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409517445210,"sku":"BWCS-HPF158NB-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409517477978,"sku":"BWCS-HPF158NB-2","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409517510746,"sku":"BWCS-HPF158NB-3","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPF158NB_1.webp?v=1779579852"},{"product_id":"hp-book-pro-16-replacement-battery-772v-8300mah-li-polymer","title":"HP Book Pro 16 Replacement Battery 7.72V 8300mAh HSTNN-WB0F","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Book Pro 16 \/ OmniBook Ultra 14 — 7.72V Li-Polymer Replacement Battery (HSTNN-WB0F)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.72V, 8300mAh (64.08Wh) lithium-polymer battery for the HP Book Pro 16, OmniBook Ultra 14, Pavilion Plus 14 Ryzen 7, and Envy x360 2-in-1 16-ad0097nr, among 200+ additional models sharing the WE04XL cell platform. It replaces OEM part HSTNN-WB0F and its cross-reference numbers. Install it when the original cell no longer holds a charge or the system shuts down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWE04XL platform compatibility:\u003c\/strong\u003e\n    The Book Pro 16, OmniBook Ultra 14, and Envy x360 2-in-1 16 series share the same 7.72V two-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol. That is why a single OEM part number — HSTNN-WB0F — covers all of them. The BIOS reads cell chemistry and rated Wh from the EEPROM on the battery PCB, so the replacement reports correctly to the firmware on first boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the battery through charge and discharge cycles on the Book Pro 16 platform. The BMS engaged thermal protection correctly, the BIOS recognised the cell without a firmware alert, and charge termination triggered cleanly at 100% with no overcharge event.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge down to hibernate cutoff — do not interrupt it — then charge uninterrupted to 100%. This forces the fuel gauge IC to recalibrate against the new cell's actual capacity curve and clears the inaccurate health warning that appears in HP Support Assistant after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Book Pro 16 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on this platform maps percentage to voltage using data it built up against the old, degraded cell. After a swap, that map is wrong — the new cell's voltage cliff sits at a different point than the IC expects. When CPU and display load spike together, the cell voltage drops faster than the stale map predicts, and the system interprets it as a critical low-battery event. Running the calibration cycle described above forces the IC to rebuild its voltage-to-percentage table against the new cell's actual chemistry. After one complete discharge-to-hibernate and full uninterrupted recharge, the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting wrong Wh rating after installing HSTNN-WB0F\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads watt-hour rating from the EEPROM on the battery's PCB, not by measuring the cell directly. If the figure shown in HP Support Assistant or the BIOS battery screen differs slightly from 64.08Wh, the EEPROM value on the replacement PCB is using a rounding convention from a different OEM batch — this does not affect charge behaviour or capacity. The cell still delivers the rated 8300mAh. To confirm actual capacity, let the system complete one full calibration cycle and check the \"Full Charge Capacity\" figure in Windows Battery Report (run \u003ccode\u003epowercfg \/batteryreport\u003c\/code\u003e from an elevated command prompt).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409517674586,"sku":"BWCS-HPR147NB-1","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409517707354,"sku":"BWCS-HPR147NB-2","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409517740122,"sku":"BWCS-HPR147NB-3","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPR147NB-1.webp?v=1779579851"},{"product_id":"hp-envy-17-ch0005ua-replacement-battery-1512v-3650mah-li-polymer","title":"HP Envy 17-CH0005UA Replacement Battery HSTNN-IB9T 15.12V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Envy 17-CH Series — 15.12V Li-Polymer Replacement Battery (HSTNN-IB9T)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a Li-Polymer replacement battery for the HP Envy 17-CH laptop series, including the Envy 17-CH0005UA and over 200 compatible models. It runs at 15.12V with a 3650mAh (55.19Wh) capacity. OEM part numbers covered include HSTNN-IB9T, TI04XL, M24420-1D1, and M24563-005.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEnvy 17-CH series compatibility:\u003c\/strong\u003e\n    Every model in the 17-CH lineup shares the same 15.12V four-cell architecture, internal connector pinout, and BMS communication protocol. That common hardware base is why one cell fits the entire range, from the CH0005UA to the CH0010CA and CH0011NB.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on a CH-series board. The BMS handshake completed without error codes, charge current tapered correctly at the top-of-charge threshold, and the protection circuit tripped cleanly at the low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the 17-CH:\u003c\/strong\u003e\n    After fitting this cell, run the laptop unplugged until it hibernates on its own, then charge uninterrupted to 100% without using the machine. This lets the BIOS battery-learn cycle reset against the new cell's actual capacity and clears the inaccurate health warning that appears on every cell swap in this series.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP Envy 17-CH stores battery state data in the BIOS. When a new cell goes in, that stored data reflects the worn-out history of the old pack — not the new one. The BIOS has not yet run a learn cycle against the fresh cell, so it flags health as poor or unknown. One full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites that data. After two to three cycles, the health indicator will update to reflect the actual condition of the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% battery remaining shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage-cliff problem, not a fuel gauge error. Under full CPU and display load, the cell's terminal voltage drops faster than the fuel gauge IC can update — the system hits the hardware undervoltage cutoff while the OS still shows charge remaining. It happens most often in the first few cycles before the fuel gauge IC has calibrated against the new cell's discharge curve. Run two or three full discharge-to-hibernate cycles without interrupting. After that, the IC's internal model aligns with the actual cell, and the shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409519280218,"sku":"BWCS-HPE177NB-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409519312986,"sku":"BWCS-HPE177NB-2","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409519345754,"sku":"BWCS-HPE177NB-3","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPE177NB-1.webp?v=1779579904"},{"product_id":"hp-nnotebook-x2-10-p043tu-replacement-battery-77v-4200mah-li-polymer","title":"HP Pavilion x2 10 Compatible Battery 7.7V 4200mAh SW02XL","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Notebook X2 10-P043TU — 7.7V Li-Polymer Replacement Battery (SW02XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.7V, 4200mAh (32.34Wh) Li-Polymer cell replaces the original SW02XL battery in the HP Pavilion x2 10 series hybrid tablet-laptop. It fits the 10-P043TU along with the 10-P000NA, 10-P000ND, 10-P000NF, and 167+ additional x2 10 variants. The connector, BMS handshake, and physical form factor match OEM spec across the full P-series lineup.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ex2 10 P-series compatibility:\u003c\/strong\u003e\n    Every model in this lineup runs the same 7.7V two-cell Li-Polymer configuration with a shared BMS communication protocol. HP standardised the SW02XL form factor across the P-series so one cell covers the full range — the HSTNN-IB7N and HSTNN-LB7N designations refer to the same physical pack with different regional part codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a 10-P series unit and confirmed the BMS completed handshake without fault codes. Charge acceptance ran clean from 0% to 100% with no mid-cycle cutoff. The EEPROM read-back matched expected Wh values after two full calibration cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration — x2 10 hybrid:\u003c\/strong\u003e\n    After fitting this cell, run the tablet side down to hibernate-cutoff under normal load — screen on, a few browser tabs open. Then charge uninterrupted to 100% without disconnecting. This forces the fuel gauge IC to re-baseline against the new cell and clears the inaccurate health warning the BIOS throws after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP x2 10 BIOS stores learned battery data in EEPROM tied to the original cell. When a new cell goes in, that stored data no longer matches the actual chemistry, so the BIOS flags the pack as degraded or unknown — even on a brand-new replacement. This is a firmware calibration issue, not a cell fault. Run one full discharge to hibernate-cutoff followed by a full uninterrupted charge to 100%. After two cycles, the fuel gauge IC re-learns the cell's actual capacity curve and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTablet shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated to the new cell's voltage curve. The x2 10 runs a combined CPU-plus-display load during active use that pulls enough current to expose a steep voltage cliff in an uncalibrated cell — the BMS interprets that voltage drop as empty and triggers a shutdown even though capacity remains. The fix is the same calibration cycle: discharge fully to hibernate, charge straight to 100% without interruption, and repeat once more. After two cycles, the OS reading will track actual cell state down to around 3.0V per cell before cutoff.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409520722010,"sku":"BWCS-HNX210NB-1","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409520754778,"sku":"BWCS-HNX210NB-2","price":83.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409520787546,"sku":"BWCS-HNX210NB-3","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HNX210NB-1.webp?v=1779579905"},{"product_id":"hp-envy-x360-13-bf0000ci-replacement-battery-77v-8200mah-li-polymer","title":"HP ENVY X360 13-BF0000CI Replacement Battery 7.7V 8200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ENVY x360 13-BF Series — 7.7V Li-Polymer Replacement Battery (HSTNN-OB2Y)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.7V 8200mAh (63.14Wh) Li-Polymer replacement battery for the HP ENVY x360 13-bf convertible laptop line. It slots into the 13-bf0000ci, 13-bf0000ne, 13-bf0000ni, 13-bf0000nia, and over 189 additional bf-series variants. Cross-reference OEM part numbers HSTNN-OB2Y, M89926-1D1, M89926-AC1, M90073-005, TPN-IB0O, or WF04XL before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e13-bf series platform fit:\u003c\/strong\u003e\n    All 13-bf variants share the same 7.7V battery rail, physical connector pinout, and BMS handshake protocol. The same cell covers the full sub-series because HP did not change the battery spec across these board revisions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a 13-bf unit under combined CPU and display load. The BMS held charge through a full discharge cycle, transitioned to hibernate cutoff cleanly, and accepted a full charge without tripping the over-voltage protection on the way back up.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after install:\u003c\/strong\u003e\n    After fitting this cell, discharge the laptop fully until it hibernates, then charge it to 100% without interruption. This forces the BIOS battery learn cycle to reset against the new cell's actual capacity and clears the inaccurate health warning that appears immediately after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ENVY x360 13-bf shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC in the 13-bf uses stored discharge curve data from the old cell to predict remaining capacity. When a new cell goes in, that data no longer matches the actual chemistry, so the IC miscalculates the voltage cliff. Under combined CPU boost and display load, the system sees a voltage drop it interprets as empty and forces an immediate shutdown — even though the cell still has real capacity left. Running two to three full discharge-to-hibernate and charge-to-100% cycles lets the fuel gauge IC rebuild its model against the new cell. After those cycles, the gauge tracks accurately and the early shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BIOS reads health data from the battery's EEPROM, which is pre-populated at the factory with rated cycle count and Wh values. On a brand-new cell, the BIOS compares that EEPROM data against its stored wear baseline and flags a mismatch as poor health. This is a read-order issue, not a fault with the cell. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. On the next boot, the BIOS battery learn cycle completes and the health status clears to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409520885850,"sku":"BWCS-HWF360NB-1","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409520918618,"sku":"BWCS-HWF360NB-2","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409520951386,"sku":"BWCS-HWF360NB-3","price":132.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HWF360NB-1.webp?v=1779579940"},{"product_id":"hp-elite-folio-135-inch-2-in-1-replacement-battery-77v-6150mah-li-polymer","title":"HP Elite Folio 13.5 2-in-1 HSTNN-OB1U Replacement Battery 7.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Elite Folio 13.5 inch 2-in-1 — 7.7V Li-Polymer Replacement Battery (HSTNN-OB1U)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.7V, 6150mAh lithium-polymer battery replaces the original cell in the HP Elite Folio 13.5 inch 2-in-1 convertible. It fits across OEM part numbers HSTNN-OB1U, M07389-AC1, M07392-005, MA04046XL, and MA04XL. Capacity is rated at 47.36Wh, matching the original specification for this device.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElite Folio 13.5 2-in-1 compatibility:\u003c\/strong\u003e\n    All five OEM part numbers listed above share the same 7.7V voltage rail, connector pinout, and BMS handshake protocol. The Elite Folio uses a single battery configuration regardless of whether the unit was sold in laptop or tablet orientation mode — one cell covers both use cases.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on the Elite Folio platform. The BMS handshake completed without fault codes, and the charge controller accepted the cell without triggering a protection cutoff or unknown-device flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Elite Folio:\u003c\/strong\u003e\n    After fitting this cell, run the battery down to the point where the system hibernates, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that nearly every replacement cell triggers on first boot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Elite Folio's BIOS reads health data from the EEPROM embedded in the old cell. When a new cell goes in, that EEPROM data does not transfer — the BIOS has no prior cycle history to reference, so it flags the battery as degraded or unknown. This is a firmware read issue, not a fault with the replacement cell. Running one full discharge-to-hibernate followed by a full uninterrupted charge gives the BIOS enough data to rewrite its internal battery learn table. After one to three cycles, the health indicator updates to reflect actual cell condition.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down with 20–30% charge still showing on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC calibration has not yet aligned to the new cell's discharge curve. The original cell and the replacement do not have identical internal resistance profiles, so the fuel gauge misjudges the voltage cliff — it reads 25% remaining but the cell is already at a voltage the BMS treats as cutoff under load. The fix is to complete two to three full discharge and charge cycles without interruption. After calibration cycles complete, the reported percentage at shutdown should stabilise above 5%, confirming the fuel gauge IC is tracking the correct curve for this cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409527439450,"sku":"BWCS-HPF135NB-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409527472218,"sku":"BWCS-HPF135NB-2","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409527504986,"sku":"BWCS-HPF135NB-3","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPF135NB-1.webp?v=1779579905"},{"product_id":"hp-omen-15-ek0009tx-replacement-battery-1155v-4300mah-li-polymer","title":"HP Omen 15-EK0009TX Compatible Battery 11.55V 4300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Omen 15-EK0009TX — 11.55V Li-Polymer Replacement Battery (HSTNN-OB1R)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.55V, 4300mAh (49.67Wh) lithium-polymer battery for the HP Omen 15-EK0009TX and compatible Omen and Victus 15 series laptops. It matches OEM part numbers HSTNN-OB1R, L84357-AC1, L84394-005, and SD03XL. Pull the old cell, fit this one, and the system powers on with the correct voltage rail.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOmen 15-EK and Victus 15-FA series compatibility:\u003c\/strong\u003e\n    These models share the same SD03XL cell format, connector pinout, and BMS communication protocol. The charging circuit and BIOS handshake expect the same 3-cell Li-Polymer pack at 11.55V nominal — this battery meets that spec without any adapter or firmware workaround.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Omen 15-EK platform. The BMS communicated correctly with the BIOS, charge acceptance was normal from 0% to 100%, and no fault codes triggered during high-CPU load draws.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after install:\u003c\/strong\u003e\n    After fitting this battery, run the laptop down to hibernate cutoff, then charge it uninterrupted to 100% without using the machine. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Omen's BIOS reads health data from EEPROM registers that the old cell wrote over hundreds of cycles. When a new cell goes in, those registers still carry the previous battery's degraded profile. Windows and BIOS both flag poor health because they're reading stale data, not the new cell's actual state. One full discharge-to-hibernate then uninterrupted charge to 100% forces the fuel gauge IC to rewrite those registers against the new cell. After that cycle, the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on the gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve yet. The gauge shows 25% remaining, but the cell voltage under full CPU plus display load drops below the BMS cutoff threshold before the display catches up. The laptop cuts power because the BMS is protecting the cell — the gauge reading is simply wrong at that point. Run two to three full discharge-and-charge cycles without interrupting and the fuel gauge IC will map the new cell's curve accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409531764826,"sku":"BWCS-HPV152NB-1","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409531797594,"sku":"BWCS-HPV152NB-2","price":82.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409531830362,"sku":"BWCS-HPV152NB-3","price":90.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPV152NB-1.webp?v=1779579905"},{"product_id":"hp-elite-x360-1040-g11-replacement-battery-1155v-5600mah-li-polymer","title":"ER06068XL HP Elite x360 1040 G11 Replacement Battery 11.55V 5600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Elite x360 1040 G11 — 11.55V Li-Polymer Replacement Battery (ER06068XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.55V, 5600mAh (64.68Wh) Li-Polymer battery is a direct cell replacement for the HP Elite x360 1040 G11, EliteBook 1040 G11, and EliteBook x360 1040 G11. It fits the internal battery bay and connects via the original flex cable and BMS harness. OEM part numbers covered include ER06068XL, ER06XL, HSTNN-OB3I, N59734-271, and TPN-DB1T.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG11 platform fit:\u003c\/strong\u003e\n    The Elite x360 1040 G11 and EliteBook 1040 G11 share the same battery bay dimensions, BMS handshake protocol, and 11.55V nominal voltage rail — one cell fits all three listed models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a G11 chassis and confirmed the BMS handshake completes on first boot. The EEPROM initialises correctly and the HP battery manager reads full capacity without a manual learn cycle trigger.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst cycle after install:\u003c\/strong\u003e\n    After fitting this cell, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap on G11 hardware.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HP BIOS reads health status from EEPROM data stored on the battery's BMS board. A new cell ships with fresh EEPROM values that don't yet match the laptop's learned charge history, so the BIOS flags it as degraded. This is a calibration state, not a fault. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — the BIOS learn cycle resets and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. Under combined CPU and display load, the cell voltage drops faster than the uncalibrated gauge predicts, and the system hits the low-voltage cutoff before the percentage reaches zero. The gauge reads a false floor. Complete two full discharge-to-hibernate cycles charging back to 100% each time — after cycle two, the fuel gauge IC maps the new cell's curve accurately and the shutdowns stop. Confirm calibration is complete when the gauge reads below 10% without a forced shutdown.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409532485722,"sku":"BWCS-HPE411NB-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409532518490,"sku":"BWCS-HPE411NB-2","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409532551258,"sku":"BWCS-HPE411NB-3","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPE411NB-1.webp?v=1779579905"},{"product_id":"hp-elite-x360-830-g11-2-in-1-replacement-battery-1155v-4600mah-li-polymer","title":"HP Elite X360 830 G11 11.55V Replacement Battery 996QA249H","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Elite X360 830 G11 2 In 1 — 11.55V Li-Polymer Replacement Battery (996QA249H)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.55V, 4600mAh (53.13Wh) Li-Polymer battery for the HP Elite X360 830 G11 2-in-1 convertible notebook. It replaces OEM part 996QA249H and fits the full 830 G11 lineup, including 8L3M9AV, 8L3P5AV, 8L3Q2AV, and 38+ additional SKUs. Cell chemistry and BMS signalling match HP's original spec for this platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElite X360 830 G11 platform fit:\u003c\/strong\u003e\n    Every 830 G11 2-in-1 variant shares the same 11.55V three-cell architecture, connector pinout, and BMS handshake protocol — which is why one cell covers the full SKU range. Swapping to a cell with mismatched BMS firmware triggers BIOS health warnings even when the cell itself is fine.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an 830 G11 unit and cycled it through HP's BIOS battery learn routine. The BMS reported correct Wh capacity, charge state tracked accurately after two full cycles, and charge acceptance reached 100% without tripping the firmware charge limit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration — Elite X360 830 G11 specific:\u003c\/strong\u003e\n    After fitting, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this model.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting the new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 830 G11 BIOS reads health data from EEPROM registers on the battery's fuel gauge IC — not from live voltage measurements. When a new cell arrives, those registers don't yet reflect the actual cycle count and capacity of the fresh chemistry. The BIOS sees mismatched data and flags the battery as degraded before a single charge cycle completes. Running HP's built-in battery check after one full calibration cycle rewrites those registers against real measured data, and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC hasn't yet mapped the new cell's voltage curve. The old cell had a gradual voltage slope the IC learned over many cycles — the new cell drops voltage faster under combined CPU and display load, hitting the low-voltage cutoff while the OS still shows 20–30% remaining. It's a calibration gap, not a faulty cell. Run two full discharge-to-hibernate cycles and the fuel gauge IC recalibrates its cutoff threshold to the new cell's actual curve — shutdowns stop occurring above 10%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409532649562,"sku":"BWCS-HPX831NB-1","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409532682330,"sku":"BWCS-HPX831NB-2","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409532715098,"sku":"BWCS-HPX831NB-3","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPX831NB-1.webp?v=1779579940"},{"product_id":"hp-elite-x360-1040-14-g10-replacement-battery-1155v-3050mah-li-polymer","title":"HP Elite X360 1040 14 G10 Replacement Battery 11.55V 3050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Elite X360 1040 14 G10 — 11.55V Li-Polymer Replacement Battery (WQ03XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.55V, 3050mAh (35.23Wh) lithium-polymer cell replaces the original battery in the HP Elite X360 1040 14 G10, Elite X360 830 G10, and EliteBook 835 13 Inch G10. All three are business-class convertibles that share the same battery bay geometry, connector pinout, and BMS handshake protocol. OEM part numbers covered include WQ03XL, 996QA243H, HSTNN-AB1C, and N22347-002, among others listed above.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElite X360 and EliteBook 835 G10 platform fit:\u003c\/strong\u003e\n    These models share a common 11.55V three-cell Li-Polymer architecture with identical SMBus communication lines. The BMS firmware on each device addresses the same register set, so one cell works across all three without connector modification or firmware adaptation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an Elite X360 1040 14 G10 and logged the BMS handshake at initial charge. The cell authenticated correctly, charge current stepped through pre-charge and CC phases without interruption, and the protection circuit responded to a controlled over-discharge event at the expected 9.0V cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the Elite X360 platform:\u003c\/strong\u003e\n    After installing this cell, discharge the laptop to hibernate cutoff under normal workload — do not force shutdown — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health flag that HP's embedded controller sets automatically after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Elite X360 BIOS reports poor battery health immediately after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eHP's embedded controller stores charge history and health data in an EEPROM register tied to the original cell. When a new cell is installed, that stored data does not match the new cell's reported state, and the controller flags the battery as degraded before it has cycled once. This is not a fault with the replacement cell — it is a mismatch between old EEPROM values and fresh chemistry. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite the learn cycle data against the new cell. After that cycle, the health warning clears and the fuel gauge reads accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops below what the CPU and display together can sustain under full load — the voltage cliff arrives earlier than the fuel gauge predicts. The fuel gauge IC is still working from calibration data built against the old, degraded cell, so its percentage readings are shifted. Under peak load, actual cell voltage hits the BMS cutoff threshold while the OS still shows 20–30% remaining. Recalibrate the gauge by running one full discharge under a real workload until the laptop hibernates, then charge to 100% without interruption — the gauge will re-anchor to the new cell's actual voltage curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409532780634,"sku":"BWCS-HPX830NB-1","price":74.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409532813402,"sku":"BWCS-HPX830NB-2","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409532846170,"sku":"BWCS-HPX830NB-3","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPX830NB-1.webp?v=1779579940"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/collections\/HP_LOGO.png?v=1787154042","url":"https:\/\/batteryweb.com\/collections\/hp-replacement-batteries.oembed","provider":"BatteryWeb","version":"1.0","type":"link"}