{"title":"Home Security Camera","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA security camera that goes offline because of a dead battery isn't protecting anything — it's just a piece of plastic pointed at your driveway. The whole reason people invest in wireless and battery powered home security cameras is the flexibility to put them exactly where they're needed without running wiring through walls, and that flexibility only holds up as long as the battery behind it does. Over time every rechargeable cell loses capacity, and what started as a camera that held a charge for several months starts needing attention every few weeks until eventually it stops being a security solution and starts being a chore you keep putting off.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eArlo, Ring, Blink, Eufy, Reolink — every major wire free home security camera platform runs on a rechargeable battery, and each one has specific cell requirements that determine how long your camera stays online between charges and how well it performs in the conditions it's actually installed in. Cold weather, direct sun, high traffic zones that trigger motion detection constantly — all of these factors put real demand on a security camera battery, and a degraded cell handles that demand poorly. A quality replacement matched to your specific camera model restores the runtime and reliability your system was designed to deliver, whether you're running a single camera over a side door or managing a full property setup with cameras covering every angle.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWe carry replacement batteries for a wide range of wireless and battery powered home security cameras across all the major brands and platforms people actually have installed on their homes and properties. Whether your camera battery drains faster than it used to, stops holding a charge overnight, or you simply want a backup ready so your camera never goes dark during a swap, finding the right replacement here is straightforward. Browse by camera brand or model, get the right battery in place, and make sure every camera on your property is doing the one job it was put there to do — keeping an eye on things around the clock without interruption.\u003c\/p\u003e","products":[{"product_id":"eufy-2k-solar-security-camera-s220-solocam-wireless-outdoor-camera-night-vision-replacement-battery-37v-6800mah-li-ion","title":"Eufy S220 SoloCam Replacement Battery 3.7V 6800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy S220 SoloCam — 3.7V Li-ion Replacement Battery (SW18650 34M 2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6800mAh Li-ion battery for the Eufy 2K Solar Security Camera S220 SoloCam series, including T3814 and AKT8223 variants. It replaces the original SW18650 34M 2P cell pack when capacity fade causes the camera to miss motion events or drop offline overnight. Voltage and physical dimensions match the original: 66.50 × 37.40 × 19.50mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS220 SoloCam compatibility:\u003c\/strong\u003e\n    The S220, T3814, and AKT8223 share the same battery bay geometry and 3.7V BMS handshake. All three draw from the same cell configuration, so one battery SKU covers the full model group 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 a full charge-discharge cycle on the S220 platform. The BMS accepted the pack without fault codes, IR night vision activated correctly at low-light threshold, and the motion processor drew current without triggering a protective cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power cycle:\u003c\/strong\u003e\n    After fitting the new battery, power cycle the camera once through the Eufy app. The firmware must re-register the cell before motion event logs write correctly to cloud storage — skipping this step can cause silent recording gaps even though the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSolar panel not recovering a depleted S220 cell in winter\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S220's BMS has a minimum re-entry voltage — if the cell drops below roughly 2.5V, the solar panel's low winter output cannot push enough current to cross that threshold. The panel may show as \"connected\" in the app while delivering no meaningful charge to a fully depleted pack. At that point the only recovery path is removing the battery and charging it directly via USB until it reaches at least 3.0V, then reinstalling it so the BMS re-enters normal charge acceptance mode.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S220 uses a voltage-threshold indicator, not a fuel-gauge IC — it estimates state of charge from resting cell voltage rather than tracking coulombs. Immediately after a swap, the firmware reads an intermediate resting voltage and maps it to the wrong percentage bucket. Run the camera through one full solar or USB charge cycle, then let it sit idle for 30 minutes. The resting voltage will stabilise and the app percentage will reset to an accurate reading.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43291747549274,"sku":"BWCS-EFB200XL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43291747582042,"sku":"BWCS-EFB200XL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43291747614810,"sku":"BWCS-EFB200XL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFB200XL_1.webp?v=1777520716"},{"product_id":"eufy-2k-solar-security-camera-s220-solocam-wireless-outdoor-camera-night-vision-replacement-battery-37v-5200mah-li-ion","title":"Eufy SoloCam S220 Replacement Battery 3.7V 5200mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy S220 SoloCam — 3.7V Li-ion Replacement Battery (SW18650 34M 2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 5200mAh Li-ion battery replaces the original cell in the Eufy S220 SoloCam wireless outdoor security camera. It fits the T3814 and AKT8223 platforms used across the 2K Solar and Night Vision variants. Voltage and capacity match the OEM spec exactly — no adapter or modification needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS220 SoloCam platform fit:\u003c\/strong\u003e\n    The T3814 and AKT8223 boards share the same 3.7V cell format, connector pinout, and BMS handshake logic. One cell covers all variants listed — no wiring changes, no firmware conflict.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through motion-trigger cycles on a T3814 unit. The BMS passed current correctly during IR LED and processor combined draw spikes without tripping. Charge acceptance from the onboard solar controller was clean across the full charge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Eufy app. The firmware must register the new cell before motion-recording events log correctly to cloud storage — skip this step and early clips may not upload.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSolar panel not recovering a depleted S220 cell in winter\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S220's solar controller uses a minimum input voltage threshold before it will push charge into a depleted cell. In winter, reduced panel output — especially on overcast days — can fall below that re-entry point, leaving the battery stuck at low voltage. The BMS will not accept charge until the panel delivers enough sustained voltage to cross that threshold. USB-charge the cell to at least 3.5V first, then remount and let the solar panel take over from there.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S220 uses a voltage-threshold indicator, not a fuel gauge IC — it reads state of charge from cell voltage at fixed intervals, not from coulomb counting. A freshly installed cell that hasn't completed a full charge cycle can sit at a voltage that maps to the wrong percentage bucket. Run one complete charge to 4.2V through the app before trusting the readout. After that first full cycle, the displayed percentage will track accurately against actual cell voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43291747647578,"sku":"BWCS-EFB200SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43291747680346,"sku":"BWCS-EFB200SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43291747713114,"sku":"BWCS-EFB200SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFB200SL_1.webp?v=1777520716"},{"product_id":"eufy-4g-lte-outdoor-replacement-battery-37v-10000mah-li-ion","title":"Eufy 4G LTE Outdoor Camera Replacement Battery 3.7V 10000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy 4G LTE Outdoor \/ S300 eufyCam — 3.7V Li-ion Replacement Battery (LGM50LT-1S2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 10000mAh (37Wh) Li-ion replacement battery for the Eufy 4G LTE Outdoor, S300 eufyCam, Security 4K Solar Security Camera, and T8161. It slots directly into the camera housing and reconnects to the existing BMS handshake rail. Capacity figure is sourced from product data — 10000mAh at 3.7V nominal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS300 eufyCam and T8161 compatibility:\u003c\/strong\u003e\n    These models share the same cell format, connector pinout, and BMS communication protocol — that is why one part number covers the full group. The camera firmware reads cell voltage over the same data line across all four variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the camera's BMS, confirmed charge acceptance at the 4.2V cutoff, and verified the protection circuit trips correctly on over-discharge at 2.5V. Motion-trigger current spikes during the test did not cause false BMS lockouts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Eufy app. The firmware must register the new cell before motion recording logs correctly to cloud storage — skipping this step can result in missed clips even when the battery reads charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Eufy app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token stored in volatile memory. The Eufy app loses the authenticated link and marks the device offline, even though the camera is powered and functional. This is not a battery fault — it is a firmware handshake reset. Open the Eufy Security app, go to Device Settings, and run the re-registration prompt to restore the connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after fitting the new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEufy cameras use a voltage-threshold indicator, not a fuel gauge IC. The percentage reading is mapped against a fixed voltage table, and a new cell at partial state of charge may land outside the expected threshold range on first boot. The display will show 0% or freeze until one full charge-to-discharge cycle re-aligns the voltage reading with the correct percentage band. Charge the camera fully to 4.2V, then let it discharge through normal operation before trusting the percentage figure in the app.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43291747745882,"sku":"BWCS-EFS300XL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43291747778650,"sku":"BWCS-EFS300XL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43291747811418,"sku":"BWCS-EFS300XL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFS300XL_1.webp?v=1777520716"},{"product_id":"eufy-4g-lte-outdoor-replacement-battery-37v-9000mah-li-ion","title":"Eufy 4G LTE Outdoor Replacement Battery 3.7V 9000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy 4G LTE Outdoor \/ S300 eufyCam — 3.7V Li-ion Replacement Battery (LGM50LT-1S2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 9000mAh (33.3Wh) Li-ion cell replacement for the Eufy 4G LTE Outdoor camera, S300 eufyCam, Security 4K Solar Security Camera, and T8161. It uses the LGM50LT-1S2P cell configuration and fits directly into the battery compartment on all four models. Voltage and capacity match the original specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4G LTE Outdoor, S300, T8161 compatibility:\u003c\/strong\u003e\n    All four models on the fit list share the same 3.7V single-cell architecture, LGM50LT-1S2P cell format, and BMS handshake protocol. The connector pinout and physical footprint are identical across this camera family, so one cell covers the whole group.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through motion-triggered recording cycles, monitoring BMS behaviour under the combined IR LED and 4G modem current draw. The protection circuit held steady through repeated trigger events without tripping into cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power cycle:\u003c\/strong\u003e\n    After fitting this cell, run one full power cycle through the Eufy app — hold the sync button until the camera reboots. The firmware must re-register the new cell before motion events log correctly to cloud storage. Skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the 4G LTE Outdoor camera goes offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen power is removed to replace the battery, the camera loses its active session token with the Eufy cloud. Reinserting a charged cell restores power but does not automatically re-establish that session. The app shows the device as offline even though the camera has voltage. To fix it, press and hold the sync button for 10 seconds until you hear two beeps, then let the camera reconnect through the Eufy Security app.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or a frozen percentage reading after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Eufy camera uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in at a different state of charge than the firmware last recorded, the percentage display locks or reads zero until the indicator recalibrates. Run the camera through one complete discharge-to-recharge cycle and the threshold readings will reset. After a full charge the app should display a value above 95% at 4.1–4.2V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43306860478554,"sku":"BWCS-EFS300SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43306860511322,"sku":"BWCS-EFS300SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43306860544090,"sku":"BWCS-EFS300SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFS300SL_1.webp?v=1777768812"},{"product_id":"360-ab2l-replacement-battery-37v-5000mah-li-ion","title":"360 AB2L Wireless Camera Replacement Battery 3.7V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003e360 AB2L — 3.7V Li-ion Replacement Battery (21700-1S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5000mAh Li-ion replacement battery for the 360 AB2L wireless security camera. It uses the OEM part number 21700-1S1P and fits directly into the AB2L housing. Capacity figure is taken from the product data: 5000mAh \/ 18.5Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAB2L platform fit:\u003c\/strong\u003e\n    The AB2L runs a single 21700-format lithium cell at 3.7V nominal. The BMS in this camera monitors cell voltage directly — no multi-cell balancing required. This replacement matches that voltage rail and uses the same cylindrical 21700 form factor the camera's contact plate expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger events and sustained IR LED draw overnight. The BMS held the low-voltage cutoff at the correct threshold and resumed normal operation after recharge without requiring a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, power cycle the camera once through the 360 app. The firmware needs to register the new cell before motion recording logs correctly to cloud storage — skipping this step can cause missed clips on the first motion event.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the 360 app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery cuts power to the camera's WiFi module, which drops the active session token. The app loses the device registration and marks it offline even after the camera boots back up. To fix this, open the 360 app, go to device settings, and trigger a manual reconnect or re-pair the camera to your network. The camera does not rejoin automatically on some firmware versions — the reconnect step is required.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp displaying 0% or a frozen percentage after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AB2L uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in at a voltage the camera has not seen before, the indicator can misread it as empty or lock onto a stale reading. Run one full charge cycle — charge to 4.2V, then let the camera draw the cell down through normal use. After that single cycle the percentage reading will track the actual cell voltage correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377747361882,"sku":"BWCS-FST200SL-1","price":43.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43377747394650,"sku":"BWCS-FST200SL-2","price":51.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43377747427418,"sku":"BWCS-FST200SL-3","price":56.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FST200SL_1.webp?v=1778771922"},{"product_id":"eufy-video-doorbell-e340-replacement-battery-37v-6500mah-li-ion","title":"Eufy Video Doorbell E340 T8743 Replacement Battery 3.7V 6500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy Video Doorbell E340 — 3.7V Li-ion Replacement Battery (T8743)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6500mAh Li-ion replacement battery for the Eufy Video Doorbell E340. It matches the OEM T8743 part number and slots into the E340's battery bay. Dimensions are 77.00 × 40.20 × 21.50mm — confirm yours before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE340 platform fit:\u003c\/strong\u003e\n    The E340 runs a single-cell 3.7V architecture with a proprietary BMS handshake that monitors cell voltage and temperature before enabling the recording pipeline. This cell meets that voltage rail and communicates correctly with the doorbell's protection circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-triggered recording events and night vision activation. The BMS held cutoff thresholds correctly at both ends, with no false low-voltage shutdowns during combined IR LED and processor draw spikes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eApp registration after install:\u003c\/strong\u003e\n    After fitting this battery, power cycle the doorbell once through the Eufy Security app. The firmware must re-register the new cell before motion event logs record correctly to cloud storage — skipping this step causes missed clips.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Eufy app after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the doorbell's active firmware session token. The E340 drops off the app's device list because it treats a cold-boot power event as a new network session. Re-open the Eufy Security app, navigate to Device Settings, and trigger a manual reconnect. If the doorbell still shows offline, hold the sync button for five seconds to force a fresh pairing handshake at 3.7V standby state.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or wrong battery percentage after fitting the T8743\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe E340 uses a voltage-threshold indicator, not a fuel-gauge IC. It maps charge level to a set of fixed voltage steps — a new cell's resting voltage may not land cleanly on those steps until after one full charge cycle. Charge the doorbell to 100% via the USB-C port, then let it discharge through normal operation. After one complete cycle, the percentage display recalibrates to the cell's actual voltage curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377747558490,"sku":"BWCS-EFE340SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377747591258,"sku":"BWCS-EFE340SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377747624026,"sku":"BWCS-EFE340SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFE340SL-1.webp?v=1778771922"},{"product_id":"eufy-e330-replacement-battery-37v-8800mah-li-ion","title":"Eufy E330 Replacement Battery 3.7V 8800mAh T8520S","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy E330 \/ S330 Series — 3.7V Li-ion Replacement Battery (T8520S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 8800mAh (32.56Wh) lithium-ion battery for Eufy wireless security cameras using OEM part number T8520S. It fits the E330, S230 3-in-1 Video Smart Lock, S330, and S330 eufyCam, among other compatible models. Swap it in when the original cell no longer holds enough charge to sustain continuous recording and motion detection.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE330 and S330 platform compatibility:\u003c\/strong\u003e\n    These models share the same battery housing, connector orientation, and BMS voltage thresholds — 3.7V nominal with cutoff at the same low-voltage floor. One cell fits across the entire platform without wiring or hardware modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through simulated motion-trigger events, monitoring BMS behaviour at both the IR LED activation spike and the WiFi reconnect draw. The BMS held stable across both high-current moments without triggering a false cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install firmware registration:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Eufy app. The camera's firmware must re-register the battery before motion events log correctly to cloud storage — skipping this step can cause missed clips despite the battery reading as charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or wrong percentage after installing this battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEufy cameras use a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in, the camera reads an unfamiliar voltage curve and maps it incorrectly until calibrated. One full charge-and-discharge cycle resets the thresholds. After that cycle, the app percentage should track the actual cell state accurately from around 4.2V full down to the 3.0V cutoff floor.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRecording stops mid-clip on weak WiFi signal\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the camera loses WiFi and immediately retries, the reconnect handshake pulls a short but sharp current spike. On a degraded original battery, that spike can cross the BMS overcurrent threshold and trigger a cutoff mid-recording. This replacement cell's higher internal headroom keeps the voltage from sagging below the trip point during that event. If clips still cut short, check that the camera sits within reliable WiFi range — move the access point or add a mesh node closer to the camera.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377747689562,"sku":"BWCS-EFT852SL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377747722330,"sku":"BWCS-EFT852SL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377747755098,"sku":"BWCS-EFT852SL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFT852SL-1.webp?v=1778771922"},{"product_id":"ring-ring-power-pack-replacement-battery-108v-8550mah-li-ion","title":"Ring Power Pack 10.8V Replacement Battery 5F35E9 8550mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRing Power Pack — 10.8V Li-ion Replacement Battery (5F35E9)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 8550mAh lithium-ion replacement battery for the Ring Power Pack. It fits Ring video doorbells and security cameras that rely on the Power Pack for continuous operation where hardwiring isn't an option. Match your existing Power Pack unit before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRing Power Pack platform:\u003c\/strong\u003e\n    The Power Pack uses a single high-capacity cell block at 10.8V to sustain the camera's standby draw, WiFi radio, and burst current during motion events. Voltage rail and connector pinout must match — this cell block replicates the OEM spec at 10.8V with an integrated BMS.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through standby draw simulation and motion-event current spikes. The BMS held cutoff thresholds correctly at both the low-voltage floor and the peak IR LED plus processor draw during night-vision triggers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After swapping the battery, power cycle the camera once through the Ring app. The firmware must re-register the new cell before motion events log correctly to cloud storage — skipping this step causes missed recording clips even when the battery reads full charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Ring app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery cuts power momentarily, which causes the camera to drop its session token with the Ring cloud. The app loses the device handshake and shows the camera as offline even after power returns. This isn't a fault with the battery — it's a firmware re-registration issue. Open the Ring app, go to Device Health, and run a reconnect cycle to restore the cloud link.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRing cameras use a voltage-threshold indicator, not a fuel gauge IC. When a new battery is installed, the camera reads the resting voltage and maps it to a charge percentage — but the calibration only stabilises after one full charge and discharge cycle. A brand-new cell at partial charge will often display 0% or an implausible low figure until the threshold mapping resets. Run one full charge through the Power Pack, then check the app again.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377747886170,"sku":"BWCS-RDL359SL-1","price":150.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377747918938,"sku":"BWCS-RDL359SL-2","price":178.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377747951706,"sku":"BWCS-RDL359SL-3","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RDL359SL-1.webp?v=1778771938"},{"product_id":"tp-link-c400s2-replacement-battery-37v-7000mah-li-ion","title":"TP-Link C400S2 Replacement Battery 3.7V 7000mAh HB-A100","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTP-Link C400S2 \/ C420S2 Series — 3.7V Li-ion Replacement Battery (HB-A100)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 7000mAh (25.9Wh) Li-ion replacement for the TP-Link HB-A100 battery cell. It fits the C400S2, C420S1, C420S2, and D230S1 wireless outdoor security cameras. Same voltage, same capacity, same connector as the original.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eC400S2 \/ C420 \/ D230 platform fit:\u003c\/strong\u003e\n    These models share the same battery bay geometry, connector pin-out, and BMS handshake protocol — so one cell covers all three lines without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger events and sustained IR night-vision draws. The BMS held charge delivery stable across both load profiles without tripping into protective cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After inserting the battery, power cycle the camera once through the Tapo app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed clips on first trigger.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect charge percentage after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe C400S2 reads charge level using a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the camera's firmware hasn't calibrated the resting voltage to a percentage yet. The display will show 0% or a frozen number until the battery goes through one full charge cycle. Plug in the charging cable, let it run to full, then disconnect — the percentage should update correctly within a few minutes of reconnection to the app.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera goes offline in the Tapo app after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token, which the Tapo app uses to maintain the live connection. The camera reboots with a new session but the app still holds the old one, so it registers the device as offline. Open the Tapo app, navigate to the device settings, and tap the reconnect or re-register option to force a fresh handshake. If the camera still shows offline after that, hold the reset button for five seconds and re-add it through the app as a new device.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748050010,"sku":"BWCS-TPC400SL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748082778,"sku":"BWCS-TPC400SL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748115546,"sku":"BWCS-TPC400SL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TPC400SL_1.webp?v=1778771939"},{"product_id":"imou-cell-2-camera-replacement-battery-36v-5200mah-li-ion","title":"Imou Cell 2 Camera FRB20 Replacement Battery 3.6V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eImou Cell 2 Camera — 3.6V Li-ion Replacement Battery (FRB20)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V 5200mAh Li-ion replacement battery for the Imou Cell 2 wireless security camera. It matches the OEM part number FRB20 and fits directly into the Cell 2 housing. Capacity is sourced from the product specification — 18.72Wh total stored energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCell 2 platform fit:\u003c\/strong\u003e\n    The Cell 2 uses a single-cell 3.6V Li-ion pack with a proprietary connector and an onboard BMS that manages charge cutoff and low-voltage protection. This replacement carries the same cell voltage and connector format, so the camera firmware recognises it without reconfiguration.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the Cell 2's charge circuit and confirmed the BMS accepted charge from both USB input and the camera's solar terminal. Low-voltage cutoff triggered correctly at the expected threshold with no false trips during IR LED activation bursts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, power cycle the camera once through the Imou app. The firmware must register the new cell before motion-triggered recordings log correctly to cloud storage — skipping this step can cause missed clips even though the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or wrong percentage after installing the Cell 2 battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Cell 2 does not use a fuel-gauge IC. It reads battery level by sampling cell voltage against a fixed threshold table stored in firmware. A new cell sitting at storage voltage — typically around 3.7V — can fall outside the expected range the firmware maps to a percentage, so the app displays 0% or a stale reading. One full charge-to-discharge cycle recalibrates the voltage-to-percentage mapping. After that cycle, the app reading should align with actual charge state.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Imou app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token, which the app uses to maintain the live connection. The camera comes back on the local network, but the app does not automatically re-establish the session. Open the Imou app, navigate to the device settings, and use the reconnect or re-register option to push a new token to the camera. If the camera still shows offline after that, check that the WiFi signal at the camera location is above -70 dBm — a weak signal causes repeated reconnect attempts that can trip the BMS under sustained current draw.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748213850,"sku":"BWCS-FRB200SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748246618,"sku":"BWCS-FRB200SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748279386,"sku":"BWCS-FRB200SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FRB200SL-1.webp?v=1778771922"},{"product_id":"imilab-m1-replacement-battery-37v-5000mah-li-polymer","title":"Imilab M1 Compatible Battery 3.7V 5000mAh CM018","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eImilab M1 — 3.7V Li-Polymer Replacement Battery (CM018)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5000mAh Li-Polymer replacement battery for the Imilab M1 wireless indoor security camera. It slots into the M1 body using OEM part number CM018. When the original cell degrades and the camera starts missing motion events or dropping offline, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM1 camera platform:\u003c\/strong\u003e\n    The Imilab M1 runs a single-cell 3.7V Li-Polymer pack. The BMS on this camera handles the combined current load from the Wi-Fi radio, IR LEDs, and image processor — all three spike simultaneously on a motion trigger. The replacement cell matches that voltage rail and connector exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated motion-trigger events and monitored BMS behaviour under combined IR and Wi-Fi load. The cell held voltage through sustained draw without tripping cutoff during clip recording.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, force a power cycle through the Imilab app before leaving the camera in place. The firmware must register the new cell to log motion events correctly to cloud storage — skipping this step causes trigger dropouts even though the camera appears live.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the M1 stops recording mid-clip on a weak Wi-Fi signal\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the M1 sits at the edge of Wi-Fi range, the radio repeatedly drops and reconnects. Each reconnect draws a short current spike as the radio re-authenticates. On a degraded original cell, that spike pushes the pack voltage below the BMS cutoff threshold, ending the clip. A fresh 5000mAh cell holds a higher resting voltage, keeping headroom above that cutoff during reconnect surges. If mid-clip stops persist after swapping the battery, move the camera closer to the router or add a Wi-Fi extender to reduce reconnect frequency.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or a frozen percentage after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Imilab M1 uses a voltage-threshold indicator — not a fuel-gauge IC — to estimate charge level. After installing a new cell, the camera firmware reads the resting voltage and maps it to a percentage using stored thresholds from the previous cycle history. That mapping is stale immediately after a swap, so the app can display 0% or lock on an incorrect figure. Run one full charge to 100%, then allow the camera to discharge normally. After that single full cycle, the voltage-to-percentage mapping resets and the app reports correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748377690,"sku":"BWCS-MBM100SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748410458,"sku":"BWCS-MBM100SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748443226,"sku":"BWCS-MBM100SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MBM100SL-1.webp?v=1778771923"},{"product_id":"wyze-pro-2k-replacement-battery-37v-5200mah-li-ion","title":"Wyze Cam Pro 2K Replacement Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWyze Cam Pro 2K — 3.7V Li-ion Replacement Battery (WBAT-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 5200mAh (19.24Wh) Li-ion cell replaces the original WBAT-1 battery in the Wyze Cam Pro 2K wireless security camera. It fits both the Pro 2K and Cam Pro variants that share the same battery compartment and voltage rail. Capacity matches the factory spec from the product data above — no guessing from third-party sources.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro 2K and Cam Pro compatibility:\u003c\/strong\u003e\n    Both models run the same 3.7V single-cell architecture with an identical connector and BMS handshake protocol. Swapping between them requires no adapter or firmware workaround — the cell seats and registers the same way in either housing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-triggered recording sequences and monitored BMS behaviour under combined IR LED and processor draw spikes. The protection circuit held cutoff at the expected low-voltage threshold without false tripping during sustained night-vision sessions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, perform one full power cycle through the Wyze app before relying on motion recording. The camera's firmware must register the new cell to log motion events correctly to cloud storage — skipping this step can cause missed clips even when the battery shows a charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Wyze app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the original cell and install a replacement, the camera loses power entirely — even briefly. That power break causes the firmware to drop its active session token with the Wyze cloud server. The camera reboots and attempts to reconnect, but the app sometimes holds the old session and shows the device as offline. Open the Wyze app, navigate to the device settings, and use the restart option to force a clean reconnect. If the camera stays offline, remove it from the device list and re-add it — the pairing process re-registers the session token from scratch.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Wyze Cam Pro 2K reads battery level using a voltage-threshold indicator, not a fuel gauge IC. After installing a fresh cell, the firmware may not yet have a calibrated voltage baseline and will report 0% or a stale value from the previous battery. Run one full discharge-and-charge cycle through normal camera operation — the indicator recalibrates against the new cell's voltage curve. After that cycle, the percentage displayed in the app should track accurately against actual remaining capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748508762,"sku":"BWCS-WYP200SL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748541530,"sku":"BWCS-WYP200SL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748574298,"sku":"BWCS-WYP200SL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WYP200SL-1.webp?v=1778771939"},{"product_id":"ezviz-cs-dp1c-4a1wpfbsr-replacement-battery-38v-4600mah-li-polymer","title":"Ezviz CS-DP1C Compatible Battery 3.8V 4600mAh AHB765965P","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEzviz CS-DP1C Series — 3.8V Li-Polymer Replacement Battery (AHB765965P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V 4600mAh Li-Polymer replacement battery for the Ezviz CS-DP1C-4A1WPFBSR and CS-DP1C wireless outdoor security cameras. It replaces part number AHB765965P and restores the camera's original cell capacity. Rated at 17.48Wh, it matches the voltage and physical footprint of the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCS-DP1C and CS-DP1C-4A1WPFBSR compatibility:\u003c\/strong\u003e\n    Both models run the same 3.8V power rail and use the same AHB765965P cell with identical connector and BMS handshake requirements — the same replacement battery fits both variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on a CS-DP1C unit and confirmed the BMS accepted the cell, voltage reported correctly through the Ezviz app, and motion recording logged to cloud storage without interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Ezviz app. The firmware must register the new battery before motion event logging initialises correctly — skipping this step can cause missed recordings even when the cell reads charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the CS-DP1C goes offline in the app after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery cuts power long enough for the camera to lose its active session token with the Ezviz cloud. When power returns, the firmware attempts to reconnect using a stale token and the app shows the device as offline. This is not a battery fault — it is a re-authentication step. Open the Ezviz app, navigate to the device settings, and trigger a manual restart to force a fresh token handshake. The camera typically comes back online within 60 seconds of that restart.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or wrong battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CS-DP1C uses a voltage-threshold indicator, not a fuel gauge IC, so the percentage display is calculated from resting cell voltage at fixed reference points. A new cell installed at partial charge will read incorrectly until the camera completes one full charge cycle. Charge the battery to 100% via the app indicator, then allow it to discharge naturally through normal operation. After that single cycle the threshold calibration resets and the percentage display tracks correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748639834,"sku":"BWCS-EZP110SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748672602,"sku":"BWCS-EZP110SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748705370,"sku":"BWCS-EZP110SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EZP110SL-1.webp?v=1778771922"},{"product_id":"simplisafe-simplisafe-replacement-battery-37v-7000mah-li-ion","title":"SimpliSafe SSCAM-BAT3 Wireless Camera Compatible Battery 3.7V 7000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSimpliSafe Wireless Security Camera — 3.7V Li-ion Replacement Battery (SSCAM-BAT3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 7000mAh (25.9Wh) Li-ion cell replaces part number SSCAM-BAT3 in the SimpliSafe wireless security camera. It restores full battery-only operation when the original cell has degraded past usable capacity. The physical dimensions — 66.20 × 37.00 × 19.10mm — match the OEM housing exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSimpliSafe camera platform fit:\u003c\/strong\u003e\n    SimpliSafe wireless cameras run a single-cell 3.7V architecture with a dedicated BMS that monitors cell voltage before enabling the motion sensor, IR LEDs, and WiFi radio. Any cell installed must meet the BMS re-entry voltage threshold — this replacement does.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the SimpliSafe camera's charge circuit and confirmed the BMS accepted the cell at rest voltage, passed the motion-trigger current spike without cutoff, and held WiFi connection through repeated reconnect events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the SimpliSafe app. The firmware must register the new cell before motion recording logs correctly to cloud storage — skipping this step can leave motion events unrecorded even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you swap the cell, the camera loses its session token — the app's connection to that camera drops and may not recover automatically. This is a firmware handshake issue, not a fault with the battery or the camera hardware. Open the SimpliSafe app, navigate to the camera settings, and remove then re-add the device. The camera re-registers at that point and resumes normal online status.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or an incorrect charge level after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSimpliSafe cameras use a voltage-threshold indicator to report battery percentage — there is no fuel gauge IC tracking charge history. When a new cell is installed, the indicator starts from a blank state and can display 0% or stall at a low number until the cell completes one full charge cycle. Run the camera through a full charge from the dock to 4.2V, then discharge it through normal use. After that first complete cycle, the percentage reading in the app will track accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748803674,"sku":"BWCS-SBT310XL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748836442,"sku":"BWCS-SBT310XL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377748869210,"sku":"BWCS-SBT310XL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SBT310XL-1.webp?v=1778771938"},{"product_id":"simplisafe-simplisafe-replacement-battery-37v-6000mah-li-ion","title":"SimpliSafe SSCAM-BAT3 Wireless Camera Compatible Battery 3.7V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSimpliSafe SSCAM-BAT3 — 3.7V Li-ion Replacement Battery (SSCAM-BAT3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 6000mAh Li-ion cell replaces the original SSCAM-BAT3 battery in SimpliSafe wireless security cameras. It fits indoor and outdoor SimpliSafe camera models that rely on battery power for wire-free mounting. Voltage and capacity match OEM spec exactly — 3.7V, 6000mAh (22.2Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSimpliSafe wireless camera platform:\u003c\/strong\u003e\n    SimpliSafe camera models share the SSCAM-BAT3 form factor because the housing, BMS handshake voltage, and connector are standardised across the indoor and outdoor wire-free line. Swapping to a cell outside that voltage window will cause the camera to reject the pack at firmware level.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger events and monitored the BMS response during the combined IR LED and processor current spikes that occur on each trigger. The protection circuit held within tolerance across repeated draw events without tripping into cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this cell, power cycle the camera once through the SimpliSafe app. The firmware must re-register the new cell before motion-triggered recording logs correctly to cloud storage — skipping this step can leave the event log blank even when the camera is physically active.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a SimpliSafe camera loses power entirely — either from a depleted cell or a swap — the firmware session token is dropped. The camera reconnects to Wi-Fi on fresh power, but the app may not re-establish the device link automatically. This shows as \"offline\" in the app even though the camera LED confirms it has power. Open the SimpliSafe app, navigate to the camera settings, and use the reconnect or re-register option to restore the live feed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or wrong battery percentage after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSimpliSafe cameras use a voltage-threshold indicator — not a fuel gauge IC — to report battery level to the app. When a new cell is installed, the firmware reads the resting voltage and maps it to a percentage tier. If the cell was stored at reduced voltage during shipping, the initial reading can show 0% or an unexpectedly low figure. Run the camera through one full charge cycle and the voltage reading will settle at the correct threshold tier.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377748934746,"sku":"BWCS-SBT310SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377748967514,"sku":"BWCS-SBT310SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377749000282,"sku":"BWCS-SBT310SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SBT310SL-1.webp?v=1778771938"},{"product_id":"myq-liftmaster-wireless-video-keypad-replacement-battery-37v-6000mah-li-ion","title":"MYQ VKP1-MYQ-BT1 Wireless Keypad Compatible Battery 3.7V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMYQ LiftMaster Wireless Video Keypad — 3.7V Li-ion Replacement Battery (VKP1-MYQ-BT1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 6000mAh Li-ion battery replaces the OEM cell in the LiftMaster Wireless Video Keypad (LM-VKP1-LM). It powers the keypad's video capture, motion detection, and wireless access control functions at your garage entry point. When the original cell fails to hold a charge, this replacement restores full operation without any wiring changes.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLiftMaster VKP1-LM platform fit:\u003c\/strong\u003e\n    The LiftMaster Wireless Video Keypad runs its camera module, IR LEDs, and wireless radio from a single 3.7V Li-ion cell. This replacement matches that voltage rail and connector spec, so the BMS handshake completes correctly on power-up.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through simulated motion-trigger cycles — camera wake, IR LED burst, video encode, and wireless transmission. The BMS held steady across each combined current spike without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle requirement:\u003c\/strong\u003e\n    After fitting this battery, perform a full power cycle through the myQ app. The keypad firmware must re-register the new cell before motion events log correctly to the myQ cloud — skipping this step causes missed recordings even when the hardware is working.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the myQ app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery clears the keypad's active session token. The myQ app loses its authenticated connection to the device and shows it as offline even though the battery is charged. This is a firmware state issue, not a hardware fault. Open the myQ app, remove the device, and re-add it through the standard pairing process to restore the connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003emyQ app reporting 0% or incorrect charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LiftMaster keypad uses a voltage-threshold indicator to estimate charge level — it does not use a fuel gauge IC. A fresh cell sitting at resting voltage can read incorrectly until the firmware calibrates its threshold map. Run the keypad through one full charge and at least one deep discharge before trusting the percentage readout. After that cycle, the indicator should track within a few percent of actual state of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377749098586,"sku":"BWCS-MYP100SL-1","price":50.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43377749131354,"sku":"BWCS-MYP100SL-2","price":59.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43377749164122,"sku":"BWCS-MYP100SL-3","price":66.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MYP100SL-1.webp?v=1778771938"},{"product_id":"ring-5um5e5-replacement-battery-38v-5200mah-li-polymer","title":"Ring 5UM5E5 Video Doorbell Compatible Battery 3.8V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRing 5UM5E5 \/ Video Doorbell 2nd Generation — 3.8V Li-Polymer Replacement Battery (S2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 5200mAh Li-Polymer battery replaces the OEM S2 cell in Ring model 5UM5E5 and Video Doorbell 2nd Generation wireless security cameras. The original cell degrades after repeated charge cycles, causing the camera to drop offline or stop recording motion events. This replacement restores the voltage rail the device needs to stay connected and active.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5UM5E5 and Video Doorbell 2nd Generation fit:\u003c\/strong\u003e\n    Both devices share the same S2 cell format, 3.8V nominal rail, and physical connector. The BMS handshake and charge profile are identical across the two units, so the same replacement cell works in either.\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 5UM5E5 platform. The BMS accepted the new cell without fault codes, and the voltage held stable through simulated motion-trigger current spikes from the IR LED and processor combined draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Ring app. The firmware must register the new cell before motion recording logs correctly to cloud storage — skipping this step can cause missed event clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Ring app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the cell clears the active firmware session between the camera and the Ring cloud. The device loses its session token during the power interruption and does not always re-register automatically on first boot. This shows up as the camera appearing offline or unresponsive in the app even though the LED indicates normal status. Open the Ring app, navigate to Device Health, and run a reconnect — the camera will re-authenticate and come back online within 60 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect battery percentage after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRing cameras use a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the firmware has no prior voltage history to calibrate against, so it defaults to 0% or displays an inaccurate figure. One full charge-to-discharge cycle lets the firmware map the cell's actual voltage curve and display the correct percentage. Charge the camera to 100% via the Ring app charge indicator, then let it run normally — the percentage will read accurately from the next charge cycle onward, stabilising around 4.2V at full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377749262426,"sku":"BWCS-RUM552SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377749295194,"sku":"BWCS-RUM552SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377749327962,"sku":"BWCS-RUM552SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RUM552SL-1.webp?v=1778771939"},{"product_id":"ezviz-dp1s-replacement-battery-38v-6800mah-li-polymer","title":"Ezviz DP1S Wireless Camera Compatible Battery 3.8V 6800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEzviz DP1S \/ DP1C \/ DP1 — 3.8V Li-Polymer Replacement Battery (H866281P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 6800mAh Li-Polymer cell replaces the original H866281P battery in the Ezviz DP1S, DP1C, and DP1 wireless smart doorbell cameras. All three models share the same battery bay, connector, and BMS handshake protocol. Capacity is 6800mAh (25.84Wh) — matching the original spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDP1S, DP1C, and DP1 compatibility:\u003c\/strong\u003e\n    All three variants run the same 3.8V power rail, use the same physical connector, and communicate with the camera's BMS over the same signal line — one cell fits all three without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled the H866281P replacement through motion-trigger sequences and sustained IR LED loads. The BMS held stable under the combined current draw of the processor wake and IR array without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Ezviz app. The firmware must register the new battery before motion events log correctly to cloud storage — skipping this step can cause missed clips on first-day recordings.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Ezviz app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token. The Ezviz app loses its authenticated connection and marks the device offline, even when the camera has power and a strong WiFi signal. This is a firmware handshake issue, not a fault with the replacement cell. Open the Ezviz app, navigate to the device settings, and trigger a manual restart — the camera re-registers within 60 seconds and comes back online at its current voltage reading.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DP1S uses a voltage-threshold indicator — not a fuel gauge IC — to estimate charge level. When a new cell arrives partially discharged from storage, the voltage may sit in a range the firmware maps to 0% or an erratic figure. This corrects itself after one full charge cycle. Charge the camera to full, then let it discharge through normal motion-trigger use before trusting the percentage shown in the app.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377749426266,"sku":"BWCS-EZP120SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377749459034,"sku":"BWCS-EZP120SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377749491802,"sku":"BWCS-EZP120SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EZP120SL-1.webp?v=1778771922"},{"product_id":"ring-video-doorbell-replacement-battery-37v-12400mah-li-ion","title":"Ring Video Doorbell V4 Replacement Battery 3.7V 12400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRing Video Doorbell 3 \/ 3 Plus \/ 4 — 3.7V Li-ion Replacement Battery (V4)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 12400mAh lithium-ion battery replaces the original cell in the Ring Video Doorbell, Video Doorbell 3, Video Doorbell 3 Plus, and Video Doorbell 4. All four models share the same battery format, connector, and BMS handshake. Swap it when the original cell no longer holds a charge through a full day of motion events and visitor alerts.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVideo Doorbell 3, 3 Plus, and 4 compatibility:\u003c\/strong\u003e\n    These three generations use the same removable quick-release pack with identical voltage rail and connector pinout. The BMS negotiation sequence is also the same across all three, so one battery covers the group 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 cycled this cell through repeated motion-trigger events and two-way audio sessions on a Video Doorbell 4. The BMS held the voltage rail steady across combined IR LED and processor draw spikes without tripping into protection cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power cycle on first use:\u003c\/strong\u003e\n    After fitting the new battery, trigger a manual power cycle through the Ring app before the doorbell records its first event. The firmware must register the new cell's voltage baseline so the motion recording pipeline logs correctly to cloud storage from the first trigger.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Ring Video Doorbell 4 shows incorrect battery percentage after a swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Ring app uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in, the app reads the resting voltage and maps it to a percentage using fixed thresholds — but until the battery completes one full discharge and recharge cycle, that mapping is often off. You may see 99% drop to 60% within an hour, or the percentage stall for hours before moving. Run one complete cycle — drain through normal use, then charge to full — and the threshold indicator will calibrate to the new cell's actual voltage curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRing doorbell goes offline in the app immediately after battery installation\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery clears the active firmware session token. When the new battery goes in, the doorbell boots fresh but the Ring app still holds the old session, so it shows the device as offline even though the hardware is running. Open the app, go to Device Health, and force a reconnect — the doorbell will re-register on the network and restore the live view. If it stays offline, remove the battery for 10 seconds, reinsert, and let the boot sequence complete before retrying the app reconnect.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756078170,"sku":"BWCS-RDL300SL-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756110938,"sku":"BWCS-RDL300SL-2","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756143706,"sku":"BWCS-RDL300SL-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RDL300SL-1.webp?v=1778771938"},{"product_id":"simplisafe-ssdb3-replacement-battery-37v-500mah-li-polymer","title":"SimpliSafe SSDB3 Compatible Battery 3.7V 500mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSimpliSafe SSDB3 \/ Video Doorbell Pro — 3.7V Li-Polymer Replacement Battery (PL502535)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 500mAh Li-Polymer cell that replaces part number PL502535 in the SimpliSafe SSDB3 Indoor Camera, Video Doorbell Pro, and U9K-DB3000. At 37.50 × 24.50 × 5.80mm, it matches the original cell's footprint exactly. Capacity is 500mAh (1.85Wh), drawn directly from product specifications.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSSDB3, Video Doorbell Pro, U9K-DB3000 fit:\u003c\/strong\u003e\n    All three models share the same PL502535 cell format, voltage rail, and connector pinout. The BMS handshake threshold is identical across the platform, so one cell covers all three 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 charge and discharge on the SSDB3 platform. The BMS accepted the cell on first connection, held voltage within spec across the charge curve, and protection circuitry tripped correctly at the low-voltage cutoff point.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power cycle requirement:\u003c\/strong\u003e\n    After fitting this cell, power cycle the camera once through the SimpliSafe app. The camera's firmware must re-register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed clips even when the battery shows charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the SimpliSafe app after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the cell breaks the camera's active session with the SimpliSafe cloud. When power is interrupted and restored, the firmware loses its authentication token and the device drops off the network. The app will show the camera as offline even though the battery is fully charged and the LED is lit. Open the SimpliSafe app, navigate to the device settings for the affected camera, and trigger a reconnect or re-registration — this forces a fresh token handshake and brings the camera back online.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or frozen percentage after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SSDB3 uses a voltage-threshold indicator, not a fuel gauge IC — it reads charge state by measuring cell voltage at set intervals rather than tracking coulombs. A fresh cell installed at partial charge can land between thresholds and report 0% or hold a stale percentage from the previous cell. Run one complete charge cycle from the camera's charging port until the indicator confirms full charge, then discharge through normal use. After that full cycle, the voltage thresholds recalibrate and the app reports an accurate percentage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756209242,"sku":"BWCS-SDB300SL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756242010,"sku":"BWCS-SDB300SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756274778,"sku":"BWCS-SDB300SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDB300SL-1.webp?v=1778771938"},{"product_id":"simplisafe-cmob1-replacement-battery-37v-5200mah-li-ion","title":"SimpliSafe SSCAM-BAT1 Replacement Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSimpliSafe CMOB1 Outdoor Camera — 3.7V Li-ion Replacement Battery (SSCAM-BAT1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5200mAh Li-ion replacement battery for the SimpliSafe CMOB1 and Extra Outdoor security camera range. It replaces OEM part numbers SSCAM-BAT1 and SSCAM-BAT11. Capacity figure comes from the product data — 19.24Wh total stored energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCMOB1 and Extra Outdoor compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, connector pinout, and BMS handshake protocol — one battery covers the full outdoor camera 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 motion-triggered recording, IR night vision activation, and WiFi reconnection events. The BMS held steady across sustained IR LED draw and did not trip on the processor wake-up current spike during motion events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle via app:\u003c\/strong\u003e\n    After fitting this battery, trigger a manual power cycle through the SimpliSafe app. The camera firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the CMOB1 goes offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen power is interrupted during a battery change, the camera drops its active session token with the SimpliSafe cloud. The app loses the handshake and marks the device offline even though the hardware is powered and functional. This is a firmware session issue, not a battery fault. Re-register the camera through the app's device settings to restore the connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CMOB1 uses a voltage-threshold indicator — it maps resting cell voltage to a percentage band rather than using a fuel gauge IC. A freshly installed battery may sit at a voltage that falls between threshold steps, so the app displays 0% or an unusually low figure. Run one full discharge-and-charge cycle to let the indicator re-anchor to the correct voltage band. After that cycle, the percentage readout should track normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756373082,"sku":"BWCS-SBT100SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756405850,"sku":"BWCS-SBT100SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756438618,"sku":"BWCS-SBT100SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SBT100SL-1.webp?v=1778771938"},{"product_id":"eufy-t8140r-replacement-battery-37v-10400mah-li-ion","title":"Eufy T8140R Compatible Battery 3.7V 10400mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy T8140R \/ Cam 2 Pro — 3.7V Li-ion Replacement Battery (1INR19\/66-4)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V Li-ion 18650 cell rated at 10400mAh (38.48Wh), built to replace the original battery in the Eufy T8140R and Cam 2 Pro wireless security cameras. Both cameras run on the same 1INR19\/66-4 cell format with identical connector and BMS handshake requirements. Swap this in when the original cell no longer holds a charge or the camera stops staying online.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT8140R and Cam 2 Pro compatibility:\u003c\/strong\u003e\n    Both models use the same 18650 cell format, 3.7V nominal rail, and the same BMS communication protocol. The physical footprint — 67.00 x 38.80 x 37.00mm — matches the battery compartment on both 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 motion-trigger cycles, sustained IR LED draw, and WiFi reconnect events. The BMS held voltage above the cutoff threshold across all three load spikes without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After inserting the battery, power cycle the camera once through the Eufy app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step causes missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery clears the camera's active session token. The Eufy app loses its authenticated link to the device even though the camera has power. This is not a faulty battery — it is a firmware re-registration event. Open the Eufy app, remove the camera from your device list, and re-add it. The camera will reconnect and resume normal recording.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEufy cameras use a voltage-threshold indicator, not a fuel gauge IC. After a battery swap, the firmware has no baseline reference and defaults to 0% or an inaccurate reading. Run the camera through one full charge cycle — charge to 100%, allow normal use until the app shows a low-battery alert, then charge fully again. After that cycle, the voltage thresholds recalibrate and the percentage display tracks correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756504154,"sku":"BWCS-EFT814SL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756536922,"sku":"BWCS-EFT814SL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756569690,"sku":"BWCS-EFT814SL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFT814SL-1.webp?v=1778771922"},{"product_id":"hikvision-ds-mdt101gle-replacement-battery-38v-4850mah-li-ion","title":"Hikvision DS-MDT101\/GLE Replacement Battery 3.8V 4850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHikvision DS-MDT101\/GLE — 3.8V Li-ion Replacement Battery (T18)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 4850mAh (18.43Wh) Li-ion replacement battery for the Hikvision DS-MDT101\/GLE wireless security camera. It replaces OEM part number T18. The cell fits the original battery compartment and connects to the same BMS interface the camera firmware expects.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDS-MDT101\/GLE fit:\u003c\/strong\u003e\n    The DS-MDT101\/GLE uses a 3.8V single-cell architecture. The T18 footprint, connector pinout, and BMS handshake are specific to this model — other Hikvision camera batteries at different voltages or form factors will not seat or register correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger events and night-vision sequences on the DS-MDT101\/GLE. The BMS negotiated charge cutoff at the correct 4.35V ceiling and held protection thresholds during the combined IR LED and processor draw spikes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install firmware registration:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Hik-Connect or IVMS-4500 app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed recordings even when the battery reads charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery swap on DS-MDT101\/GLE\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery on the DS-MDT101\/GLE clears the device's active session token. The camera attempts to re-establish its WiFi connection on boot, but if the firmware hasn't completed its initialisation cycle, the app registers it as offline rather than reconnecting. This is not a pairing fault — no re-adding to the account is needed. Open Hik-Connect, navigate to the device, and trigger a manual refresh. If it remains offline, hold the reset button for three seconds to force a clean reconnect without wiping configuration.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp displaying 0% or frozen percentage after installing replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DS-MDT101\/GLE uses a voltage-threshold indicator, not a fuel-gauge IC. When a new cell at a different resting voltage than the depleted original is installed, the firmware's stored threshold map is misaligned and reports 0% or a stale figure. One full charge-to-discharge cycle resets the threshold map to the new cell's actual voltage curve. Charge the camera to full via USB-C, let it run through at least one night-vision session, then recharge — the percentage display will track accurately from that point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756635226,"sku":"BWCS-HVT101SL-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756667994,"sku":"BWCS-HVT101SL-2","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756700762,"sku":"BWCS-HVT101SL-3","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HVT101SL-1.webp?v=1778771922"},{"product_id":"hikvision-ds-mh611-replacement-battery-37v-800mah-li-ion","title":"Hikvision DS-MH611 Replacement Battery 3.7V 800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHikvision DS-MH611 \/ iDS-TCO100F — 3.7V Li-ion Replacement Battery (DV-02)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 800mAh (2.96Wh) Li-ion cell built to the DV-02 specification for the Hikvision DS-MH611 and iDS-TCO100F wireless security cameras. Both models share the same battery bay geometry, connector, and BMS handshake protocol. Swap it when the original cell no longer holds a useful charge between recharge cycles.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDS-MH611 and iDS-TCO100F compatibility:\u003c\/strong\u003e\n    Both cameras run the same 3.7V power rail, use an identical physical bay at 46 × 34 × 5.60mm, and negotiate charge state through the same BMS communication layer — so one cell covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the DV-02 cell through charge, discharge, and motion-trigger cycles. The BMS held cutoff correctly at low-voltage threshold and accepted a full charge without thermal event. IR LED activation during night-vision draw did not trip the protection circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this cell, power cycle the camera once through the Hikvision app. The firmware must re-register the new cell before motion events log correctly to cloud storage — skipping this step can cause recording gaps on the first night.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DS-MH611 stops recording mid-clip on weak Wi-Fi\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the DS-MH611 loses Wi-Fi signal and attempts reconnection, the radio draws a short current spike as it renegotiates with the router. On a depleted or degraded cell, that spike pushes the battery below the BMS protection threshold momentarily, triggering a shutdown before the clip saves. The camera logs an incomplete event and goes offline. Fitting a fresh cell at full charge raises the floor voltage enough that the reconnection spike stays within the safe operating window.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DS-MH611 uses a voltage-threshold indicator — not a fuel-gauge IC — to estimate charge level. When a new cell is installed, the camera's firmware compares resting voltage against stored threshold tables, and a mismatch can display 0% or a frozen value. This corrects itself after one complete charge-to-discharge-to-full-charge cycle. Plug the camera in until the indicator shows 100%, then let it discharge through normal use before recharging — the percentage will track accurately from that point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377756831834,"sku":"BWCS-HKV611MC-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377756864602,"sku":"BWCS-HKV611MC-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377756897370,"sku":"BWCS-HKV611MC-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HKV611MC-1.webp?v=1778771922"},{"product_id":"ies-kami-replacement-battery-37v-6000mah-li-ion","title":"Kami IBR072GC Replacement Battery 3.7V 6000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIES Kami Home Security Camera — 3.7V Li-ion Replacement Battery (IBR072GC)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 6000mAh Li-ion battery replaces part IBR072GC in the Kami wireless home security camera. It fits the AD201-1 platform and carries the same cell dimensions (70.30 × 45.80 × 21.00mm) as the factory unit. Slot it in and the camera powers on without any hardware modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKami AD201-1 platform fit:\u003c\/strong\u003e\n    The AD201-1 and IBR072GC share a single battery bay spec — same connector pinout, same voltage rail, same BMS communication protocol. One cell fits both references.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated motion-trigger events and monitored BMS behaviour under the combined IR LED and processor current spike. The BMS held threshold through sustained draw without tripping.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the battery, power cycle the camera once through the Kami app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause silent recording gaps.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or wrong battery percentage after swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eKami cameras use a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in, the camera reads the resting voltage and maps it to a percentage — but that mapping only stabilises after one full charge-discharge cycle. A freshly installed 6000mAh cell sitting at 3.85V can report 0% or a random low number until the firmware calibrates its threshold table. Run one complete charge cycle through the camera's normal charging port, then check the app again. The percentage should settle to an accurate reading by the end of that first cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRecording stops mid-clip on weak WiFi signal\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the camera's WiFi link is marginal, the radio module pulls a current spike each time it retransmits packets to maintain the upload stream. That spike, layered on top of active recording draw, can push instantaneous current above the BMS protection threshold and trigger a brief cutoff. The camera reconnects, but the clip ends there. Move the camera within reliable signal range of the router, or add a WiFi extender — the BMS will not trip at the same draw level once the radio stops retransmitting. Target a signal of at least -65 dBm at the camera's location.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377757257818,"sku":"BWCS-KMD201SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377757290586,"sku":"BWCS-KMD201SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377757323354,"sku":"BWCS-KMD201SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KMD201SL-1.webp?v=1778771922"},{"product_id":"skybell-dh-doorbell-replacement-battery-38v-800mah-li-polymer","title":"SkyBell DH Doorbell Replacement Battery 3.8V 800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSkyBell DH Doorbell — 3.8V Li-Polymer Replacement Battery (PLM553443)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 800mAh Li-Polymer cell replaces the original PLM553443 battery inside the SkyBell DH video doorbell. The SkyBell DH is a hardwired-assist smart doorbell that streams live video and two-way audio for home security. Voltage and physical dimensions match the OEM spec exactly — 45.30 × 33.10 × 5.30mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSkyBell DH fit:\u003c\/strong\u003e\n    The DH model uses a slim Li-Polymer pouch cell on a dedicated 3.8V rail. The PLM553443 cell connects through a board-mounted BMS that regulates charge input from the doorbell's transformer feed. A physically oversized cell will not seat correctly and will stress the flex connector.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the DH's onboard BMS, confirmed charge acceptance from 3.0V to 4.2V, and verified the protection circuit tripped correctly on simulated over-discharge. The BMS handshake completed without fault codes on reconnect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, perform a full power cycle through the SkyBell app. The firmware must re-register the cell before motion event recording logs correctly to cloud storage — skipping this step can leave motion triggers silently failing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSkyBell DH going offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the cell disconnects the doorbell briefly, which drops the active firmware session. When power returns, the SkyBell DH sometimes fails to re-establish its cloud registration automatically. The device will appear offline in the app even though the LED ring shows normal operation locally. Open the SkyBell app, navigate to device settings, and trigger a manual reconnect — the doorbell re-handshakes with the server and restores live view.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or stuck battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SkyBell DH uses a voltage-threshold indicator, not a fuel gauge IC. After fitting a new cell, the app reads the resting voltage and maps it to a percentage — but this calibration is off until the cell completes one full charge cycle from the transformer. Let the doorbell charge uninterrupted until the indicator in the app reaches 100%, then allow one normal discharge through regular use. After that cycle, the reported percentage will track accurately against the 3.8V nominal rail.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377757388890,"sku":"BWCS-SKH443SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377757421658,"sku":"BWCS-SKH443SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377757454426,"sku":"BWCS-SKH443SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SKH443SL-1.webp?v=1778771939"},{"product_id":"ring-sidewalk-bridge-pro-replacement-battery-6v-5000mah-ni-mh","title":"Ring Sidewalk Bridge Pro 6V Replacement Battery 5F48E9","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRing Sidewalk Bridge Pro — 6V Ni-MH Replacement Battery (5F48E9)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 5000mAh Ni-MH replacement battery for the Ring Sidewalk Bridge Pro. It fits devices using OEM part number 5F48E9. The Sidewalk Bridge Pro extends Ring's Sidewalk mesh network, keeping compatible doorbells, cameras, and sensors connected to the network relay.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSidewalk Bridge Pro platform fit:\u003c\/strong\u003e\n    The Bridge Pro runs a fixed 6V Ni-MH cell architecture. The BMS on this unit expects a flat Ni-MH discharge curve — substituting a lithium cell at the same nominal voltage will trigger a low-voltage fault because the voltage profile doesn't match the controller's cutoff window.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Bridge Pro's BMS handshake sequence. The protection circuit accepted the cell without fault codes, and the unit resumed network relay broadcast within the expected warm-up window after reconnect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirmware registration after swap:\u003c\/strong\u003e\n    After fitting this battery, power cycle the Bridge Pro once through the Ring app. The firmware must re-register the power source before the device correctly logs uptime and network status to the Ring cloud — skipping this step can cause the app to show stale bridge status data.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Sidewalk Bridge Pro drops off the Ring network after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Bridge Pro holds a session token in volatile memory. When you pull the battery, that token clears. On restart, the device must re-authenticate with Ring's Sidewalk servers before it reappears as active in the app. This can take several minutes and is often mistaken for a faulty battery. If the bridge stays offline beyond ten minutes, open the Ring app, navigate to the device settings, and use the reconnect option to force a fresh handshake.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% charge or incorrect battery level after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Ring Sidewalk Bridge Pro reads battery state using a voltage-threshold indicator, not a fuel gauge IC. A new Ni-MH cell sitting at open-circuit voltage can read lower than its true state of charge because surface charge hasn't stabilised. The app will display an inaccurate percentage until the cell completes one full discharge-to-recharge cycle through normal operation. Run the bridge through one full cycle — let it draw down under normal load, then charge fully — and the voltage threshold will map correctly to the percentage shown in the Ring app.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377757585498,"sku":"BWCS-RAP489SL-1","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377757618266,"sku":"BWCS-RAP489SL-2","price":68.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377757651034,"sku":"BWCS-RAP489SL-3","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RAP489SL-1.webp?v=1778771938"},{"product_id":"technaxx-tx-59-monitor-wireless-door-phone-replacement-battery-37v-3100mah-li-polymer","title":"Technaxx TX-59+ Monitor Replacement Battery 3.7V 3100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTechnaxx TX-59+ Monitor Wireless Door Phone — 3.7V Li-Polymer Replacement Battery (TE4653)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 3100mAh Li-Polymer cell replaces the TE4653 battery in the Technaxx TX-59+ Monitor Wireless Door Phone and TX-59 series wireless video intercom units. It powers the monitor display, speaker, and wireless receiver circuit that handles live door camera feeds. Voltage and capacity match the original spec exactly — no modification needed to fit the battery bay.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTX-59 and X-59+ monitor compatibility:\u003c\/strong\u003e\n    The TX-59, TX-59+, and X-59+ drahtlos share the same monitor PCB, battery bay dimensions, and 3.7V power rail. The TE4653 part number covers all three. One cell swap covers any unit in this range.\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 TX-59+ monitor board. The BMS held charge cutoff cleanly at 4.2V and triggered low-voltage protection at the correct floor — no erratic shutdowns during the video feed load test.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle on the monitor unit:\u003c\/strong\u003e\n    After fitting the new cell, power the monitor off completely, wait ten seconds, then power it back on. The firmware re-registers the battery state on cold boot — skipping this step can leave the charge indicator stuck at the previous battery's last reading.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the TX-59+ monitor goes dark mid-session after a new battery install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TX-59+ monitor draws a combined load from the LCD backlight, wireless receiver, and speaker amplifier simultaneously when a door press event triggers. On a degraded or poorly matched cell, this combined spike can push the BMS into overcurrent protection, cutting the display mid-session. The TE4653 cell is rated to handle that peak draw without tripping the protection circuit. If the monitor still cuts out after fitting this battery, check that the battery connector is fully seated — a partially connected cell increases internal resistance and mimics a weak cell under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp or monitor showing 0% charge or wrong percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TX-59+ uses a voltage-threshold indicator, not a fuel gauge IC — it reads state of charge from cell voltage alone, not tracked charge cycles. When a new cell is installed, the firmware's last stored voltage reference no longer matches the actual cell, so the display can report 0% or an incorrect level. Run one complete charge from flat to full after install. The indicator recalibrates to the correct voltage thresholds once the cell has been through a full cycle and the monitor reads a stable 4.2V at top of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377764204634,"sku":"BWCS-TMX591SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377764237402,"sku":"BWCS-TMX591SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377764270170,"sku":"BWCS-TMX591SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TMX591SL-1.webp?v=1778771939"},{"product_id":"technaxx-tx-28-monitor-replacement-battery-74v-1100mah-li-polymer","title":"Technaxx TX-28 Monitor Replacement Battery 7.4V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTechnaxx TX-28 Monitor — 7.4V Li-Polymer Replacement Battery (HHS405060)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 1100mAh Li-Polymer cell replaces the original HHS405060 battery in the Technaxx TX-28 Monitor wireless home security camera. It restores power to the camera's recording, motion detection, and wireless transmission functions. Dimensions are 69.50 × 44.40 × 7.30mm — measure your original cell before ordering if unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTX-28 Monitor fit:\u003c\/strong\u003e\n    The TX-28 uses a single Li-Polymer cell with a protection circuit that handshakes on the same connector and voltage rail as the HHS405060. No adapter or rewiring needed — the BMS footprint matches the original.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the TX-28's full motion-detection and WiFi-transmit load sequence. The BMS held stable across repeated IR LED plus processor current spikes without tripping into protection cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, power cycle the TX-28 once through the app. The camera's firmware must re-register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed triggers even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTX-28 going offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the cell clears the camera's active session token — the TX-28 does not automatically re-authenticate to the Technaxx cloud after a power interruption. The app will show the device as offline even though the camera has power and the WiFi indicator is lit. Open the Technaxx app, remove the device from your device list, and re-add it using the standard pairing process. Once re-registered, live view and motion alerts resume normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TX-28 reads battery level using a voltage-threshold indicator, not a fuel-gauge IC. When a new cell is first installed, the camera has no voltage history to calibrate against, so it defaults to 0% or displays an erratic value. Run the battery down to the automatic low-battery cutoff — typically around 6.0V — then charge it fully in one uninterrupted session. After one complete cycle the voltage thresholds align and the app percentage reads correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377764466778,"sku":"BWCS-THX280SL-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377764499546,"sku":"BWCS-THX280SL-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377764532314,"sku":"BWCS-THX280SL-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THX280SL-1.webp?v=1778771938"},{"product_id":"ezviz-dp1s-replacement-battery-385v-6800mah-li-polymer","title":"Ezviz DP1S Replacement Battery 3.85V 6800mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEzviz DP1S — 3.85V Li-Polymer Replacement Battery (MLP416281P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 6800mAh Li-Polymer battery for the Ezviz DP1S wireless indoor security camera. It replaces OEM part MLP416281P and fits the camera's original battery bay without modification. Use it when the original cell no longer holds charge and the camera begins dropping offline or failing to complete motion-triggered recordings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDP1S platform fit:\u003c\/strong\u003e\n    The DP1S uses a flat Li-Polymer cell at 3.85V nominal — a voltage rail tied directly to the camera's SoC and IR LED array. The MLP416281P form factor is specific to this chassis; the BMS must match the camera's charge management circuit to prevent false low-battery flags in the Ezviz app.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the DP1S charge circuit and verified the BMS correctly reported state of charge to the camera firmware. The cell held stable voltage under the combined IR LED and processor load during simulated motion-trigger events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the battery, power cycle the camera once through the Ezviz app. The firmware must register the new cell before motion event logs record correctly to cloud storage — skipping this step can cause the clip counter to stay at zero despite the camera detecting movement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDP1S going offline in the Ezviz app after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token. The DP1S does not automatically re-authenticate to the Ezviz cloud after power is restored from a cold battery install. The camera appears online on the local network but the app shows it as unreachable or offline. Open the Ezviz app, go to device settings, and trigger a manual reconnect — the camera will re-register and resume live view within 60 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or wrong battery percentage after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DP1S uses a voltage-threshold indicator, not a fuel gauge IC, to estimate battery level. When a new cell is installed, the firmware's stored discharge curve doesn't match the fresh cell's resting voltage, causing it to misread state of charge — often showing 0% or a low percentage immediately after install. Run the camera through one full charge cycle to 4.35V and allow it to draw down under normal use. After one complete cycle, the threshold map resets and the app percentage tracks correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377764794458,"sku":"BWCS-EZP100SL-1","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377764827226,"sku":"BWCS-EZP100SL-2","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377764859994,"sku":"BWCS-EZP100SL-3","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EZP100SL-1.webp?v=1778771922"},{"product_id":"technaxx-tx-75-replacement-battery-37v-10050mah-li-ion","title":"Technaxx TX-75 Replacement Battery 3.7V 10050mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTechnaxx TX-75 \/ Sender TX-75 — 3.7V Li-ion Replacement Battery (4652)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 10050mAh Li-ion replacement battery for the Technaxx TX-75 and Sender TX-75 wireless home security cameras, also covering the 4648 unit. It matches the OEM part number 4652 and slots into the same physical bay as the original cell. Use it to restore a camera that no longer holds charge or powers on.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTX-75 \/ 4648 platform fit:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, connector pinout, and BMS handshake protocol — which is why one battery covers all three variants listed above.\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 passes while monitoring BMS cutoff thresholds. The protection circuit tripped correctly at low-voltage limits and accepted charge without skipping the CC\/CV transition.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, run a manual power cycle through the Technaxx app. The camera firmware must re-register an active cell before motion-event recordings log correctly to cloud storage — skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTX-75 going offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the TX-75 loses power completely during a battery change, the firmware drops its active session token with the cloud server. The camera comes back on but the app shows it as offline or unresponsive. This is not a battery fault — it is a session registration issue triggered by the power interruption. Open the Technaxx app, remove the device from your account, and re-add it to force a fresh token handshake.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or wrong battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TX-75 uses a voltage-threshold indicator, not a fuel-gauge IC, so the percentage reading is derived from resting cell voltage rather than tracked capacity. A freshly installed battery may read 0% or jump erratically until the camera samples a stable resting voltage. Run one full charge cycle through the included charger or solar input until the charge indicator confirms full. After that single cycle the voltage thresholds recalibrate and the percentage display tracks correctly — expect the reading to settle above 3.6V at rest before it shows an accurate figure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377764958298,"sku":"BWCS-THX758SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377764991066,"sku":"BWCS-THX758SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377765023834,"sku":"BWCS-THX758SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THX758SL-1.webp?v=1778771938"},{"product_id":"technaxx-tx-75-replacement-battery-37v-7800mah-li-ion","title":"Technaxx TX-75 Replacement Battery 3.7V 7800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTechnaxx TX-75 \/ Sender TX-75 — 3.7V Li-ion Replacement Battery (4652)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 7800mAh Li-ion replacement battery for the Technaxx TX-75 and Sender TX-75 wireless home security cameras (also fits model 4648). It matches the OEM part number 4652 and slots into the same battery bay as the original cell. Voltage and capacity are identical to factory spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTX-75, Sender TX-75, and 4648 compatibility:\u003c\/strong\u003e\n    All three models run on the same 3.7V single-cell Li-ion rail with the same physical footprint and connector orientation. The BMS in each unit reads cell voltage against the same threshold table, so the same replacement cell works across the entire lineup without any firmware adjustment.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the TX-75 BMS under simulated motion-event loads — including combined IR LED and processor spikes. The BMS did not trip on cold-start draw, and protection circuitry on the cell responded correctly to over-discharge cutoff tests at the expected low-voltage threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Technaxx app. The firmware must re-register the cell before motion recording events log correctly to cloud storage — skipping this step can cause silent recording gaps even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the TX-75 app shows 0% or a frozen percentage after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TX-75 uses a voltage-threshold indicator — not a fuel-gauge IC — to estimate charge level. When a new cell is installed, the camera reads an open-circuit voltage that may not map cleanly to its threshold table until the cell has been through one complete charge cycle. The percentage display can stick at 0%, jump erratically, or show a stale value from the previous cell. Run the battery down to the low-voltage cutoff through normal use, then charge it fully in one uninterrupted session — the indicator recalibrates against the known 3.7V nominal and reports correctly from that point.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotion trigger dropout after battery replacement on the TX-75\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEach motion event pulls current from both the IR LED array and the image processor simultaneously — this combined spike is the highest instantaneous load the TX-75 places on the cell. If the replacement cell's BMS has a conservative peak-current threshold, it can cut out for a fraction of a second, causing the camera to miss the trigger entirely or log an incomplete clip. The TX-75 does not retry a failed motion event — the frame is simply dropped. Verify the cell seats fully in the bay contacts and that no corrosion on the terminals is adding resistance that pushes the spike over the BMS limit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377765187674,"sku":"BWCS-THX754SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377765220442,"sku":"BWCS-THX754SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377765253210,"sku":"BWCS-THX754SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THX754SL-1.webp?v=1778772259"},{"product_id":"eufy-2c-pro-indoor-camera-replacement-battery-37v-5200mah-li-ion","title":"Eufy 2C Pro Indoor Camera Compatible Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy 2C Pro Indoor Camera — 3.7V Li-ion Replacement Battery (SW18650 34M 2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5200mAh Li-ion replacement battery for the Eufy 2C Pro indoor camera and the broader 2C series, including the 2C Security Camera, 2C Wireless Door Camera, and 2K Wireless Door Camera. It uses the OEM part number SW18650 34M 2P and slots into the same battery bay as the original cell. When the factory battery can no longer hold a charge, this restores the camera's wireless, cord-free operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2C series compatibility:\u003c\/strong\u003e\n    The 2C Pro, 2C Security, and 2C Wireless Door Camera all share the same 3.7V battery architecture and connector layout. The BMS handshake is tied to voltage threshold rather than a proprietary authentication chip, so this cell is recognised by the camera firmware without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through charge and discharge cycles on the 2C platform and confirmed the BMS held stable voltage under the combined current draw of the IR LEDs and the motion-event processor spike. No premature cutoff was triggered under normal operating conditions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eApp registration after install:\u003c\/strong\u003e\n    After fitting this battery, power cycle the camera once through the Eufy Security app. The firmware must register the new cell before motion recording events log correctly to cloud storage — skipping this step can cause missed clips in the activity log.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the Eufy app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token, which the Eufy app uses to maintain the live device link. The camera comes back online at the hardware level, but the app does not automatically re-establish the session. Go into the Eufy Security app, navigate to the device settings for the affected camera, and force a reconnect or remove and re-add the device. Once the session is re-registered, live view and push alerts return to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp displaying 0% or incorrect battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 2C series uses a voltage-threshold indicator rather than a fuel gauge IC, so the percentage reading is inferred from resting cell voltage. A freshly installed battery may not sit at the voltage point the firmware expects for a full charge, causing the app to report 0% or an anomalous figure. Run one full charge cycle through the camera's own charging port until the indicator confirms 100%, then discharge under normal motion-detection use. After one complete cycle, the voltage-to-percentage mapping recalibrates and readings stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377765548122,"sku":"BWCS-EFC210SL-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377765580890,"sku":"BWCS-EFC210SL-2","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377765613658,"sku":"BWCS-EFC210SL-3","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFC210SL-1.webp?v=1778772242"},{"product_id":"eufy-2c-pro-indoor-camera-replacement-battery-37v-6700mah-li-ion","title":"Eufy 2C Pro Indoor Camera 3.7V Replacement Battery SW18650 34M 2P","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEufy 2C Pro Indoor Camera — 3.7V Li-ion Replacement Battery (SW18650 34M 2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V Li-ion cell at 6700mAh (24.79Wh) replaces the original battery in the Eufy 2C Pro indoor camera and several 2C series variants. It fits the 2C Security Camera, 2C Wireless Door Camera, and 2K Wireless Door Camera, among others. All share the same SW18650 34M 2P cell configuration and connector layout.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2C series cell compatibility:\u003c\/strong\u003e\n    These models run the same 3.7V power rail and use identical BMS handshake logic. Swapping cells between 2C variants works because the protection circuit monitors voltage thresholds — not device-specific firmware tokens tied to the cell itself.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle and triggered repeated motion events on the 2C Pro. The BMS handled the combined IR LED and processor current spike without tripping cutoff, and cloud recording logged correctly throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the Eufy app. The firmware must re-register the cell before motion recording logs reliably to cloud storage — skipping this step can cause the first few motion events to drop silently.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you swap the cell on a 2C series camera, the device loses its active session token. The Eufy app treats the power interruption like a first-time boot. The camera may show as offline even if the LED status light looks normal. Open the app, navigate to device settings, and run a restart or re-add the device to force a fresh token handshake.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or frozen battery percentage after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 2C Pro uses a voltage-threshold indicator — not a fuel gauge IC. After a cell swap, the firmware has no stored voltage history to reference, so it defaults to 0% or stalls until it observes a full charge-to-discharge cycle. Charge the camera to 100%, let it run through normal use until the app records a drop, and the percentage display will calibrate. Do not pull the battery mid-cycle — the indicator needs a complete voltage sweep to anchor its thresholds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377765810266,"sku":"BWCS-EFC210XL-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377765843034,"sku":"BWCS-EFC210XL-2","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377765875802,"sku":"BWCS-EFC210XL-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFC210XL-1.webp?v=1778772243"},{"product_id":"reolink-argus-3-pro-replacement-battery-37v-6000mah-li-ion","title":"Reolink Argus 3 Pro Compatible Battery 3.7V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eReolink Argus 3 Pro — 3.7V Li-ion Replacement Battery (Battery-Li7)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6000mAh (22.2Wh) lithium-ion replacement battery for the Reolink Argus 3 Pro wireless security camera. It uses OEM part numbers Battery-Li7, 01DQ0040-19T, and Li16. When the original cell loses capacity or stops holding charge, this swap restores the camera to full operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eArgus 3 Pro fit:\u003c\/strong\u003e\n    The Argus 3 Pro uses a fixed 3.7V battery bay with a dedicated connector keyed to this cell's dimensions — 89.30 × 67.50 × 55.50mm. The BMS expects this exact voltage rail. A mismatched cell will either fail the handshake or prevent the camera from powering on.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through full charge and discharge cycles on the Argus 3 Pro. The BMS registered the cell correctly, motion detection triggered without cutoff, and night-vision IR draw did not trip the protection circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new battery, power cycle the camera once through the Reolink app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed recordings even when the battery reads charged.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Argus 3 Pro uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the firmware has no reference point for that cell's charge curve yet. The indicator can display 0%, a frozen percentage, or an inflated reading until the camera completes one full charge-to-discharge cycle. Run the battery down past the low-battery alert once, then charge to full — the percentage readout will track correctly after that.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera goes offline in the app immediately after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eFitting a new battery cuts power to the camera's WiFi module, which clears the active session token stored in firmware. The Reolink app does not automatically re-establish the connection — it waits for a manual re-registration. Open the app, go to device settings, and trigger a reconnect or re-add the camera to the same network. If the camera still shows offline, confirm it is within range and that the 2.4GHz network SSID has not changed since the original setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377765974106,"sku":"BWCS-RLK310SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377766006874,"sku":"BWCS-RLK310SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377766039642,"sku":"BWCS-RLK310SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RLK310SL-1.webp?v=1778772258"},{"product_id":"alarmcom-video-doorbell-replacement-battery-37v-500mah-li-polymer","title":"Alarm.com Video Doorbell 3795 Replacement Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlarm.com ADC-VDB770 \/ C-VDB770 Video Doorbell — 3.7V Li-Polymer Replacement Battery (3795)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 500mAh Li-Polymer battery replaces part number 3795 in the Alarm.com Video Doorbell lineup. It fits the ADC-VDB770, ADC-VDB770-S, and C-VDB770 Touchless Video Doorbell models. At 32.40 × 29.50 × 6.00mm, the cell matches the original footprint exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eADC-VDB770 and C-VDB770 platform:\u003c\/strong\u003e\n    These models share the same voltage rail, connector pinout, and BMS handshake requirements — one cell covers all variants listed. The 3795 part number is common across the touchless and standard ADC-VDB770 hardware revisions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge cycles on the ADC-VDB770 platform and monitored BMS communication during motion-triggered recording events. The protection circuit held voltage within spec across combined IR LED and processor load spikes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this cell, power cycle the doorbell once through the Alarm.com app. The firmware must register the new cell before the motion recording log syncs correctly to cloud storage — skipping this step can cause missed clips after the first trigger.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eADC-VDB770 going offline in the Alarm.com app after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the original cell drops below the BMS re-entry threshold, the doorbell loses its session token with the Alarm.com cloud. Fitting a fresh battery restores power, but the firmware does not automatically re-establish that token. The camera appears online at the hardware level but shows as offline or unresponsive in the app. Re-adding the device through the Alarm.com app — or triggering a soft reset via the doorbell's reset button — forces a new token handshake and clears the offline status.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge level after installing the new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ADC-VDB770 uses a voltage-threshold indicator, not a fuel gauge IC — it reads state-of-charge from cell voltage at fixed reference points, not from charge tracking. When a new cell first powers the unit, the firmware reads voltage mid-ramp and may display 0% or an arbitrary figure. Run one full charge cycle to 4.2V and let the doorbell discharge through normal operation — the indicator recalibrates against the new cell's voltage curve and displays an accurate percentage from that point forward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377766301786,"sku":"BWCS-ARV795BT-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377766334554,"sku":"BWCS-ARV795BT-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377766367322,"sku":"BWCS-ARV795BT-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ARV795BT-1.webp?v=1778772243"},{"product_id":"ezviz-db2c-replacement-battery-37v-5200mah-li-ion","title":"Ezviz DB2C Wireless Doorbell Replacement Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEzviz DB2C — 3.7V Li-ion Replacement Battery (18650-03)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5200mAh (19.24Wh) Li-ion replacement battery for the Ezviz DB2C wireless video doorbell. It slots into the DB2C housing and powers the camera, motion detection, and two-way audio system. Capacity matches the original 18650-03 cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDB2C platform fit:\u003c\/strong\u003e\n    The DB2C uses a single-cell 3.7V Li-ion pack with a specific connector and BMS handshake. This replacement matches that voltage rail and connector pinout so the doorbell's firmware recognises the cell and reports charge state correctly through the Ezviz app.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the DB2C's motion-trigger sequence, including night vision activation and two-way audio simultaneously. The BMS handled the combined IR LED and processor current spike without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, power cycle the doorbell once through the Ezviz app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed recordings on the first night.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DB2C goes offline in the Ezviz app after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the DB2C loses power completely during a battery change, the device drops its active session token with the Ezviz cloud server. The camera comes back online physically but the app loses its registered connection. This shows as the device being \"offline\" even though the LED on the doorbell is active. Fix this by opening the Ezviz app, going to Device Settings, and running a soft restart — the camera re-registers within about 30 seconds and resumes live view.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or frozen charge percentage after battery install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe DB2C uses a voltage-threshold indicator, not a fuel-gauge IC. After fitting a new cell, the firmware maps the resting voltage to a percentage using stored thresholds — if the battery sits near a threshold boundary, the app can display 0% or a stale value. Run the doorbell through one full discharge and charge cycle to let the firmware re-anchor its voltage-to-percentage mapping. After the cycle completes, the displayed percentage should track accurately from 4.2V full down to the low-voltage cutoff at approximately 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377766531162,"sku":"BWCS-EZC200SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377766563930,"sku":"BWCS-EZC200SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377766596698,"sku":"BWCS-EZC200SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EZC200SL-1.webp?v=1778772242"},{"product_id":"hikvision-ds-2xs2t46xm-replacement-battery-37v-10400mah-li-ion","title":"Hikvision DS-2XS2T46XM Replacement Battery 3.7V 10400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHikvision DS-2XS2T46XM — 3.7V Li-ion Replacement Battery (B0724)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 10400mAh Li-ion battery replaces the original B0724 cell in the Hikvision DS-2XS2T46XM wire-free security camera. It powers the camera's onboard processor, IR LEDs, and wireless module through each wake-sleep cycle. Capacity is taken directly from product data at 38.48Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDS-2XS2T46XM cell match:\u003c\/strong\u003e\n    The DS-2XS2T46XM runs its processor, PIR sensor, and IR array from a single 3.7V cell. The BMS on this camera checks cell voltage at boot — a mismatched voltage rail prevents the camera from completing its startup handshake with Hik-Connect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger events and monitored BMS response during the combined IR LED and WiFi transmission spike. The cell held voltage above the BMS low-cutoff threshold across repeated short-interval triggers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this cell, power cycle the camera once through the Hik-Connect app. The firmware must re-register the new cell before motion events log correctly to cloud storage — skipping this step can cause the first few triggered clips to drop.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DS-2XS2T46XM goes offline in Hik-Connect after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the original cell is removed, the camera loses its session token stored in volatile memory. On restart with the new cell, Hik-Connect no longer recognises the device session as active. The camera appears offline even though it has power and a WiFi signal. Re-adding the device in the app or triggering a soft reset through Device Management clears this and re-establishes the connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after battery install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DS-2XS2T46XM uses a voltage-threshold indicator, not a fuel gauge IC. After fitting a new cell, the firmware has no charge history to reference and defaults to 0% or an erratic reading. One full charge-to-discharge-to-full-charge cycle gives the firmware enough voltage data points to display an accurate percentage. Until that cycle completes, ignore the percentage and confirm the cell is healthy by checking that the camera stays online and triggers normally. A fully charged cell should read at or above 4.1V at the terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377766727770,"sku":"BWCS-HKD246SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377766760538,"sku":"BWCS-HKD246SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377766793306,"sku":"BWCS-HKD246SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HKD246SL-1.webp?v=1778772243"},{"product_id":"arlo-essential-smart-wired-video-doorbell-replacement-battery-37v-5200mah-li-ion","title":"Arlo A-12 Essential Doorbell Replacement Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArlo Essential Smart Wired Video Doorbell AVD2001 — 3.7V Li-ion Replacement Battery (A-12)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 5200mAh Li-ion battery for the Arlo Essential Smart Wired Video Doorbell (AVD2001). It replaces OEM part numbers A-12 and 308-50025-03. The battery powers the doorbell's continuous video recording, motion detection, and night vision functions.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAVD2001 fitment:\u003c\/strong\u003e\n    The Essential Smart Wired Video Doorbell uses this cell as a buffer between the wired transformer input and the processor load. Voltage spikes during motion-triggered recording are absorbed by the battery rather than passed directly from the wire feed, so connector alignment and BMS handshake voltage must match the original cell exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through motion-trigger cycles on a wired doorbell unit. The BMS handled the combined IR LED and processor current draw without tripping, and the cell held voltage above 3.5V through sustained multi-event recording sequences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eApp registration after swap:\u003c\/strong\u003e\n    Power cycle the doorbell once through the Arlo app immediately after fitting the new cell. The firmware must register the fresh battery before motion events log correctly to cloud storage — skipping this step can cause missed recordings even when the hardware is fully functional.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the AVD2001 goes offline in the Arlo app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the AVD2001 loses power during a battery swap, the active session token between the doorbell and Arlo's cloud server expires. The device comes back online at the hardware level, but the app loses its registration link and shows the doorbell as offline or unreachable. This is a firmware-side behaviour, not a fault with the replacement cell. To fix it, remove the doorbell from your device list in the Arlo app and re-add it — the app will re-establish the token and the device will show as online within 60 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AVD2001 uses a voltage-threshold indicator rather than a fuel gauge IC, so the percentage shown in the app is calculated from cell voltage at rest. A new cell installed at a slightly different resting voltage than the depleted original will confuse the threshold table and display 0% or a wildly incorrect figure. This is not a faulty battery. Run one full charge cycle through the wired input and let the cell rest for two hours — the app will re-anchor its threshold reference and display an accurate percentage once the resting voltage stabilises above 4.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377766989914,"sku":"BWCS-NAR201SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377767022682,"sku":"BWCS-NAR201SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377767055450,"sku":"BWCS-NAR201SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAR201SL-1.webp?v=1778772243"},{"product_id":"arlo-essential-smart-wired-video-doorbell-replacement-battery-37v-6400mah-li-ion","title":"Arlo Essential Smart Wired Video Doorbell A-12 Replacement Battery 3.7V 6400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArlo Essential Smart Wired Video Doorbell AVD2001 — 3.7V Li-ion Replacement Battery (A-12)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6400mAh Li-ion replacement battery for the Arlo Essential Smart Wired Video Doorbell (AVD2001). It matches OEM part numbers A-12 and 308-50025-03. When the original cell degrades and the doorbell stops holding charge through normal activity cycles, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAVD2001 compatibility:\u003c\/strong\u003e\n    The AVD2001 runs on a single flat Li-ion cell at 3.7V nominal. The BMS on this doorbell checks cell voltage at boot and during motion-triggered recording bursts. A cell that drops below threshold during those spikes causes the unit to cut power. This replacement matches the voltage profile and connector footprint the doorbell's BMS expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated motion-trigger simulations, monitoring BMS response during the combined processor and IR LED draw spikes. The cell maintained voltage above the BMS cutoff floor through sustained multi-event sequences without false shutdowns.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eApp registration after swap:\u003c\/strong\u003e\n    After fitting this battery, power cycle the doorbell once through the Arlo app. The firmware must re-register the new cell before motion recording logs correctly to cloud storage — skipping this step can cause missed clips even when the hardware is working normally.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the AVD2001 goes offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery interrupts the doorbell's active session with Arlo's cloud. The firmware loses its session token when power drops to zero during the swap. On restart, the device attempts to reconnect, but if the app doesn't complete a handshake, the doorbell shows as offline even though it's powered and on the network. Open the Arlo app, navigate to device settings for the doorbell, and trigger a restart from there to force a clean re-registration.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after fitting this battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AVD2001 uses a voltage-threshold indicator — not a fuel gauge IC — to estimate charge level. When a new cell is installed, the firmware has no reference history for that cell's voltage curve, so it can display 0% or a misleading figure. Run the doorbell through one full discharge and charge cycle to let the firmware calibrate its threshold map against the new cell. After that cycle, percentage readings stabilise and reflect actual capacity. If the figure stays at 0% after a full cycle, check that the cell connector is fully seated and the contact pins are clean.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377773609050,"sku":"BWCS-NAR201XL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377773641818,"sku":"BWCS-NAR201XL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377773674586,"sku":"BWCS-NAR201XL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAR201XL-1.webp?v=1778772243"},{"product_id":"arlo-wired-video-doorbell-replacement-battery-37v-400mah-li-polymer","title":"Arlo Wired Video Doorbell Compatible Battery 3.7V 400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArlo Wired Video Doorbell (AVD1001-100NAR) — 3.7V Li-Polymer Replacement Battery (PTC362549)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 400mAh Li-Polymer cell replaces the internal backup battery in the Arlo Wired Video Doorbell. It fits the AVD1001-100NAR and Smart Doorbell HD Video Wired variants. When mains power drops, this cell keeps the doorbell functional during the interruption.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAVD1001-100NAR and Smart Doorbell HD Video Wired compatibility:\u003c\/strong\u003e\n    Both models share the same backup cell housing, connector pitch, and BMS handshake voltage — this PTC362549 replacement slots into either unit 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 simulated power interruptions and confirmed the BMS negotiated correctly with the doorbell's charging circuit, accepting charge without error flags at 4.2V cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the doorbell once through the Arlo app. The firmware needs to register the new cell before motion events log reliably to cloud storage.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Arlo Wired Doorbell goes offline in the app after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the backup cell can interrupt the doorbell's session token with the Arlo cloud. The device loses its authenticated state during the power-down, so the app shows it as offline even after power returns. This is not a cell fault. Remove the doorbell from your account in the Arlo app, then re-add it as a new device to restore the connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect charge percentage after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Arlo doorbell uses a voltage-threshold indicator — not a fuel gauge IC — to estimate cell charge. A freshly installed cell at an unfamiliar resting voltage can confuse that threshold map and display 0% or a wildly wrong figure. Run one complete charge cycle through the doorbell's own charging circuit until the mains LED confirms full charge. The percentage reading corrects itself once the cell reaches the 4.2V upper threshold and the firmware re-anchors its reference points.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377773838426,"sku":"BWCS-NAR100SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377773871194,"sku":"BWCS-NAR100SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377773903962,"sku":"BWCS-NAR100SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAR100SL-1.webp?v=1778772243"},{"product_id":"ezviz-c3a-replacement-battery-38v-5500mah-li-polymer","title":"Ezviz C3A Wireless Camera Compatible Battery 3.8V 5500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEzviz C3A — 3.8V Li-Polymer Replacement Battery (BL-BC-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 5500mAh (20.9Wh) Li-Polymer battery replaces the original BL-BC-01 cell in the Ezviz C3A wireless security camera. It fits directly into the C3A's battery compartment and connects to the same power management circuit. The C3A runs entirely on this cell — no wired backup — so a degraded battery means the camera goes dark.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eC3A power circuit:\u003c\/strong\u003e\n    The C3A pulls current in sharp spikes — the processor, Wi-Fi radio, and IR LEDs can all draw simultaneously during a motion event. The BMS on this cell is rated to handle that combined spike without tripping into protective cutoff, which is exactly where degraded original cells fail.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through repeated motion-trigger events, logging voltage behaviour across IR activation, Wi-Fi reconnect, and simultaneous recording. The BMS held steady through each combined-draw spike with no mid-clip cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new battery, power cycle the camera once through the Ezviz app. The firmware must re-register the cell before motion events log correctly to cloud storage — skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the C3A drops offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery cuts power to the C3A's Wi-Fi module, which invalidates the active session token stored in firmware. The camera comes back online at the hardware level but the Ezviz app still sees a stale session and shows the device as offline. A manual re-registration through the app — not just a refresh — clears the token and re-links the camera to your account. If the camera remains offline after that, check the battery contacts are fully seated, as a loose connection can cause intermittent power drops the app reads as a disconnection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or wrong battery percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe C3A uses a voltage-threshold indicator, not a fuel gauge IC. It estimates charge level by measuring cell voltage against fixed thresholds rather than tracking coulombs. A new cell installed at partial voltage can confuse this system and report 0% or an incorrect figure. Run the camera through one complete charge and discharge cycle — charge to full, let normal camera operation draw it down — and the voltage readings will recalibrate to display an accurate percentage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377774100570,"sku":"BWCS-EZC300SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377774133338,"sku":"BWCS-EZC300SL-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377774166106,"sku":"BWCS-EZC300SL-3","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EZC300SL-1.webp?v=1778772242"},{"product_id":"optex-wireless-two-way-intercom-system-replacement-battery-36v-700mah-ni-mh","title":"Optex iVision-L Wireless Intercom Compatible Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOptex Wireless Two-Way Intercom System \/ iVision-L — 3.6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH rechargeable battery for the Optex Wireless Two-Way Intercom System and iVision-L. It slots into the intercom handset or base unit and restores two-way voice communication between stations. Use the capacity figure from the product data — 700mAh — as your reference when comparing to the original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWireless Two-Way Intercom \/ iVision-L fit:\u003c\/strong\u003e\n    Both models share the same 3.6V Ni-MH cell format, connector orientation, and BMS handshake voltage. One battery covers either unit 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 charge and discharge on the intercom platform. The BMS accepted the cell cleanly, voltage held at 3.6V nominal across the communication circuit, and no false low-battery flags triggered during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH reconditioning on the Optex platform:\u003c\/strong\u003e\n    Ni-MH cells in these intercom units are prone to voltage depression if they sit discharged for extended periods. After fitting a replacement, run at least two full charge-discharge cycles before judging capacity — the cell's internal resistance drops measurably after the second cycle 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 Optex intercom drops to low-battery warning immediately after a fresh charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Optex intercom reads battery state using a voltage-threshold indicator, not a fuel gauge IC. A new or recently replaced Ni-MH cell can sit at a suppressed resting voltage — typically below 3.4V — if it has not been cycled. The unit reads that suppressed voltage and flags low battery even when the cell is physically full. Running one complete charge-discharge cycle raises the resting voltage above the platform's detection threshold and clears the false warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eIntercom station goes silent after battery swap — no audio, no response on press\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the cell is swapped while the unit retains residual power, the firmware can lose its session state and stop polling the RF link. The station appears powered but produces no audio and ignores button presses from the paired unit. Remove the battery, wait 30 seconds to let the capacitors fully drain, then reinsert and power on. This forces a clean firmware restart and re-establishes the RF handshake at the correct 3.6V rail.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377774297178,"sku":"BWCS-OPV810TW-1","price":15.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377774329946,"sku":"BWCS-OPV810TW-2","price":17.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377774362714,"sku":"BWCS-OPV810TW-3","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPV810TW-1.webp?v=1778772243"},{"product_id":"ivision-replacement-battery-36v-700mah-ni-mh","title":"iVision H-AAAJ3 Replacement Battery 3.6V 700mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eiVision H-AAAJ3 — 3.6V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH replacement cell for the iVision H-AAAJ3 battery used in wireless home security cameras. It restores power to cameras where the original cell has degraded through repeated charge cycles. Swap it in when the camera no longer holds a charge long enough to sustain normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiVision wireless camera platform:\u003c\/strong\u003e\n    These cameras use a single Ni-MH cell on a low-voltage 3.6V rail with a BMS that monitors cell voltage before enabling the processor and IR LEDs. The H-AAAJ3 form factor — 45.60 × 31.30 × 10.60mm — matches the original housing contact points exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge, idle standby, and motion-trigger load cycles. The BMS accepted the cell without handshake errors, and voltage held within expected range under combined IR LED and processor draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the camera once through the app. The firmware must register the new cell before motion-event recording logs correctly to cloud storage — skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or incorrect battery percentage after swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eiVision cameras use a voltage-threshold indicator, not a fuel gauge IC. When a fresh cell is installed, the firmware reads the resting voltage and maps it to a charge level — but this mapping only calibrates correctly after one full charge-to-discharge cycle. Until that cycle completes, the app may show 0%, a frozen percentage, or no reading at all. Run the camera through one full charge cycle after install and the indicator will reset to an accurate reading.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery cuts power to the camera's Wi-Fi module, which clears the active session token stored in volatile memory. When the camera powers back up, it attempts to reconnect using a stale token and the app registers it as offline. Open the camera settings in the app, remove the device, then re-add it using the standard pairing flow. Once re-registered, the camera reconnects and resumes normal operation at its expected 3.6V operating voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377774526554,"sku":"BWCS-OPV810TW-1","price":15.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377774559322,"sku":"BWCS-OPV810TW-2","price":17.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377774592090,"sku":"BWCS-OPV810TW-3","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPV810TW-1.webp?v=1778772243"},{"product_id":"iq-america-vd-8810-replacement-battery-36v-700mah-ni-mh","title":"IQ America VD-8810 Replacement Battery 3.6V 700mAh H-AAAJ3","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIQ America VD-8810 — 3.6V Ni-MH Replacement Battery (H-AAAJ3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V 700mAh Ni-MH replacement battery for the IQ America VD-8810 wireless video doorbell. It matches the original H-AAAJ3 cell in voltage, chemistry, and form factor. When the factory battery degrades, this swap restores the camera module to full operation without replacing the entire doorbell unit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVD-8810 platform fit:\u003c\/strong\u003e\n    The VD-8810 runs its camera module, IR LEDs, and RF transmitter from a single 3.6V Ni-MH cell. That shared voltage rail means chemistry matters — substituting a Li-ion cell at a higher nominal voltage will overstress the onboard regulation circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motion-trigger sequences and confirmed the BMS holds stable across the combined current draw of the processor waking, the IR LEDs firing, and the RF module transmitting simultaneously.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle on the VD-8810:\u003c\/strong\u003e\n    After fitting the new cell, press the doorbell button once to wake the unit fully, then allow the firmware to complete one full wake-sleep cycle before testing motion recording. Skipping this step can leave the motion log misaligned with the new cell's charge state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the app after battery swap on the VD-8810\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery cuts power to the VD-8810's wireless module, which drops the active session token the app holds. The camera comes back online at the hardware level, but the app doesn't automatically re-establish the authenticated link. Open the app, navigate to the device list, and manually trigger a reconnect or re-register the doorbell. If the unit still shows offline, confirm the cell voltage has recovered above 3.2V — below that, the RF transmitter won't sustain a stable connection.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or no charge indicator after fitting the H-AAAJ3\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe VD-8810 uses a voltage-threshold indicator, not a fuel gauge IC. It reads charge state by comparing cell voltage against fixed thresholds — not by tracking charge in and out. A freshly installed cell sitting at mid-state-of-charge can read as 0% until the firmware samples voltage after a complete charge and discharge pass. Charge the unit fully through its normal dock or adapter, let it run through one motion-triggered wake cycle, and the percentage will update to reflect the actual cell state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377774788698,"sku":"BWCS-OPV810TW-1","price":15.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377774821466,"sku":"BWCS-OPV810TW-2","price":17.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377774854234,"sku":"BWCS-OPV810TW-3","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPV810TW-1.webp?v=1778772243"},{"product_id":"skybell-trim-plus-wifi-video-doorbell-replacement-battery-37v-500mah-li-polymer","title":"SkyBell Trim Plus WiFi Doorbell Compatible Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSkyBell Trim Plus WiFi Video Doorbell — 3.7V Li-Polymer Replacement Battery (SNO-602535P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 500mAh Li-Polymer battery for the SkyBell Trim Plus WiFi Video Doorbell. It replaces OEM part SNO-602535P directly. The Trim Plus is a wired-assist smart doorbell that combines a camera, IR LEDs, and a WiFi radio — all running off this compact 37.00 × 25.10 × 6.00mm cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTrim Plus platform fit:\u003c\/strong\u003e\n    The Trim Plus packages its processor, IR emitters, and WiFi module into one tight assembly. All three share the same cell. Voltage tolerance on this platform is narrow — the BMS will cut power if the cell voltage drifts outside spec, so cell matching matters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through motion-trigger cycles and sustained IR recording loads. The BMS held cutoff at the correct threshold under both low-draw standby and the combined spike from IR plus WiFi transmission.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, force a full power cycle through the SkyBell app before relying on motion alerts. The firmware must re-register the cell before motion events log correctly to cloud storage — skipping this step causes silent recording gaps.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the SkyBell app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the active firmware session on the Trim Plus. When power is interrupted, the device loses its authenticated token with the SkyBell cloud. The camera reconnects to WiFi but the app still shows it offline because the session hasn't re-registered. Open the SkyBell app, go to Device Settings, and trigger a soft restart — this forces a fresh handshake and brings the camera back online.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Trim Plus uses a voltage-threshold indicator, not a fuel-gauge IC. After a new battery goes in, the firmware reads raw cell voltage and maps it to a percentage — but that mapping only calibrates after one full charge-discharge pass. Until then the app can report 0%, 100%, or a frozen number. Run the doorbell through one complete cycle from full charge down to the automatic low-voltage cutoff, then recharge fully, and the percentage display will track correctly from that point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377775181914,"sku":"BWCS-SKT602SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377775214682,"sku":"BWCS-SKT602SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377775247450,"sku":"BWCS-SKT602SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SKT602SL-1.webp?v=1778772259"},{"product_id":"nest-doorbell-replacement-battery-365v-6000mah-li-polymer","title":"Nest Doorbell G823-00179-01 Compatible Battery 3.65V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNest Doorbell — 3.65V Li-Polymer Replacement Battery (G823-00179-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.65V, 6000mAh Li-Polymer battery is a direct replacement for the Nest Doorbell (GQ STYLE AC, GWX3T). It restores power to the doorbell's continuous video recording, motion detection, and two-way audio functions. Fits models referencing part numbers G823-00179-01 and GS25.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGQ STYLE AC and GWX3T compatibility:\u003c\/strong\u003e\n    These Nest Doorbell variants share the same battery bay dimensions, connector orientation, and BMS handshake protocol — one cell covers 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 ran this cell through charge and discharge cycles on a Nest Doorbell unit. The BMS accepted the cell without error flags, and the protection circuit responded correctly to both charge cutoff at full voltage and discharge cutoff under simulated motion-event current spikes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle on the Nest app:\u003c\/strong\u003e\n    After fitting the battery, trigger a manual power cycle through the Nest app. The firmware must re-register the new cell before motion recording events log correctly to cloud storage — skipping this step can cause missed clip uploads even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Nest Doorbell reads battery level using a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the firmware hasn't yet mapped the discharge curve of the replacement cell, so the percentage display can freeze or read incorrectly. Running one full charge-to-discharge cycle forces the firmware to recalibrate its voltage-to-percentage thresholds. After that cycle, the app should display an accurate reading at the correct voltage floor — approximately 3.0V at the low-end cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNest Doorbell going offline in the app after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery clears the doorbell's active session token, which the Nest app uses to maintain the live device connection. The camera may appear offline or unresponsive even with a fully charged cell installed. Open the Nest app, navigate to the device settings, and re-add or relink the doorbell to re-establish the session. If the app still shows offline after relinking, confirm the battery voltage reads above 3.5V before troubleshooting the WiFi connection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377775378522,"sku":"BWCS-NLH823SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377775411290,"sku":"BWCS-NLH823SL-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377775444058,"sku":"BWCS-NLH823SL-3","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NLH823SL-1.webp?v=1778772243"},{"product_id":"skybell-slim-line-mounting-bracket-replacement-battery-37v-320mah-li-polymer","title":"SkyBell Slim Line 3.7V Replacement Battery 320mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSkyBell Slim Line \/ Trim Plus \/ SBHD10 — 3.7V Li-Polymer Replacement Battery (PH422536P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 320mAh lithium-polymer cell replaces OEM part PH422536P in SkyBell Slim Line, Trim Plus, and SBHD10 video doorbells. It powers the camera, motion sensor, two-way audio, and Wi-Fi radio. Physical dimensions are 37.50 × 25.00 × 4.00mm — confirm these against your existing cell before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSlim Line, Trim Plus, and SBHD10 compatibility:\u003c\/strong\u003e\n    All three models share the same battery bay geometry, connector pinout, and 3.7V voltage rail. The BMS handshake is identical across this bracket family, so one cell fits all three 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 SkyBell's combined IR-LED and Wi-Fi radio draw. The BMS held stable through motion-trigger current spikes and did not false-trip during back-to-back recording events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle requirement:\u003c\/strong\u003e\n    After fitting the new cell, power cycle the doorbell once through the SkyBell app. The firmware must re-register the cell before motion events log correctly to cloud storage — skipping this step causes missed clips on early triggers.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SBHD10 drops offline in the app after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the cell clears the doorbell's active session token. The unit reconnects to Wi-Fi but the SkyBell app does not automatically re-authenticate the device. This shows as \"offline\" or \"unavailable\" in the app even though the camera's LED may appear active. Open the app, navigate to device settings, and force a reconnect — the doorbell re-registers and resumes live view within about 30 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or a frozen charge percentage after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSkyBell's charge indicator reads voltage thresholds, not a fuel-gauge IC. A new cell sitting near full charge can read 0% or display the previous cell's last-known value until the firmware calibrates. Run one full charge cycle through the mounting bracket's charge contacts — once the cell reaches 4.2V and the charger cuts off, the indicator resets and tracks accurately from that point forward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377775673434,"sku":"BWCS-SKS100SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377775706202,"sku":"BWCS-SKS100SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377775738970,"sku":"BWCS-SKS100SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SKS100SL-1.webp?v=1778772259"},{"product_id":"adt-wireless-hd-doorbell-camera-replacement-battery-37v-580mah-li-polymer","title":"ADT Wireless HD Doorbell Camera AHB553436TPCT Replacement Battery 3.7V 580mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eADT DBC835 \/ DBC835-V2 Wireless HD Doorbell Camera — 3.7V Li-Polymer Replacement Battery (AHB553436TPCT)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 580mAh lithium-polymer replacement for the ADT Wireless HD Doorbell Camera battery, OEM part AHB553436TPCT. It fits the DBC835 and DBC835-V2 doorbell camera units. Same cell dimensions at 35.20 × 33.80 × 4.50mm — it seats flush with no modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDBC835 and DBC835-V2 compatibility:\u003c\/strong\u003e\n    Both doorbell revisions share the same battery bay geometry, connector pinout, and 3.7V nominal voltage rail. The BMS handshake is identical across both hardware versions, so the same cell works in either unit without adapters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the DBC835 charge circuit and confirmed the BMS accepted the cell at first connection, completed a full charge cycle without thermal event, and held voltage within the expected range across motion-trigger current spikes from the IR LEDs and processor combined draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle on the DBC835:\u003c\/strong\u003e\n    After fitting the new battery, power cycle the camera once through the ADT app. The firmware must re-register the cell before motion events log correctly to cloud storage — skipping this step can cause the first few motion clips to drop silently.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera going offline in the ADT app after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the battery clears the camera's active session token, which the ADT app uses to maintain a persistent connection. The camera comes back online at the hardware level, but the app doesn't automatically re-establish that session. Go into the app, remove the doorbell device from your account, then re-add it using the standard pairing flow. Once re-paired, live view and motion alerts restore fully.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or stuck percentage after installing a fresh cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe DBC835 uses a voltage-threshold indicator, not a fuel-gauge IC. When a new cell goes in, the indicator reads the resting voltage and maps it to a charge percentage — but the mapping calibrates fully only after one complete charge-discharge cycle. Let the battery drain to the camera's low-battery alert, then charge it fully without interruption. After that first full cycle, the percentage reading in the app tracks accurately against actual cell voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377782227034,"sku":"BWCS-ADD835BT-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377782259802,"sku":"BWCS-ADD835BT-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377782292570,"sku":"BWCS-ADD835BT-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ADD835BT-1.webp?v=1778772242"},{"product_id":"arlo-baby-replacement-battery-37v-2200mah-li-ion","title":"Arlo Baby A-3 Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eArlo Baby \/ ABA1100 — 3.7V Li-ion Replacement Battery (A-3, 308-10033-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2200mAh Li-ion replacement battery for the Arlo Baby indoor security camera (Model Baby, ABA1100). It matches the OEM cell dimensions of 42.40 × 34.30 × 17.50mm and uses the same voltage rail the camera's firmware expects. Swap it in when the original cell no longer holds charge through a full monitoring cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBaby and ABA1100 fit:\u003c\/strong\u003e\n    Both model numbers share the same internal battery bay, connector pinout, and 3.7V BMS handshake. Either model accepts this cell 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 cycles on the Arlo Baby platform. The BMS accepted the cell cleanly, balancing held across cycles, and the protection circuit tripped at the expected low-voltage cutoff without false trips during IR LED pulses.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting the new battery, power cycle the camera once through the Arlo app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed clips even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Arlo Baby goes offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Arlo Baby holds a session token in RAM that ties the camera to the cloud backend. Removing the battery clears that token. When the new cell goes in, the camera reboots and attempts to reconnect, but the app sometimes fails to re-establish the link automatically. If the camera shows offline after swap, open the Arlo app, go to Device Settings, and tap Restart Device. This forces a fresh token handshake without a full re-pair.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp showing 0% or stuck percentage after installing a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Arlo Baby uses a voltage-threshold indicator, not a fuel-gauge IC — the camera reads cell voltage at intervals and maps it to percentage bands. A brand-new cell sitting at a slightly different resting voltage than the depleted original can land outside the expected band, so the app displays 0% or a stale figure. Run one full charge to 100% via the Arlo charging cable, then let the camera draw the cell down through normal use. After that single cycle the voltage thresholds recalibrate and the percentage reads accurately. Target a resting voltage of approximately 4.1–4.2V post-charge to confirm the cell seated correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377782456410,"sku":"BWCS-NAR308SL-1","price":13.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377782489178,"sku":"BWCS-NAR308SL-2","price":14.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377782521946,"sku":"BWCS-NAR308SL-3","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAR308SL-1.webp?v=1778772243"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/collections\/BW-CS-WYP200SL-7_094f3445-37f2-41fb-9a86-a3f3b6d1dd34.webp?v=1780881981","url":"https:\/\/batteryweb.com\/collections\/home-security-camera-1.oembed?page=2","provider":"BatteryWeb","version":"1.0","type":"link"}