{"title":"Personal Care","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe personal care devices people use every day — electric toothbrushes, hair clippers, trimmers, epilators, grooming tools — all run on rechargeable batteries that gradually lose their staying power over time. It starts with a shorter runtime between charges, then gets to the point where the device barely makes it through a single use before dying. Replacing the battery is almost always cheaper and easier than replacing the whole device, and it brings performance back to where it was when everything was new.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWe carry replacement batteries for a broad range of cordless personal care and grooming devices from the brands found in most bathrooms and medicine cabinets. Whether it's an electric toothbrush that's losing its charge too fast or a hair trimmer that's fading mid-cut, finding the right cell for your specific device is straightforward here. Small fix, big difference — get your everyday essentials running the way they should.\u003c\/p\u003e","products":[{"product_id":"hairmax-laserbrand-82-replacement-battery-37v-2500mah-li-polymer","title":"Hairmax Laserbrand 82 Compatible Battery 3.7V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHairmax Laserbrand 82 — 3.7V Li-Polymer Replacement Battery (AHB104050)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2500mAh lithium-polymer replacement battery for the Hairmax Laserbrand 82 low-level laser therapy device. It fits the handheld laser comb used for hair follicle stimulation treatment. The OEM part number is AHB104050.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLaserbrand 82 fit:\u003c\/strong\u003e\n    The Laserbrand 82 uses a slim Li-Polymer cell in a specific 52.50 x 40.00 x 10.00mm form factor. The BMS is matched to the 3.7V nominal rail and the low-current laser diode array — swapping in a mismatched cell triggers the protection circuit and the device reads as dead even with charge present.\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 Laserbrand 82 platform. The BMS completed full charge termination without tripping the protection fault, and the laser array powered on across the full discharge curve without mid-session cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLi-Polymer storage care for LLLT devices:\u003c\/strong\u003e\n    If the Laserbrand 82 sits unused between treatment courses, store it with roughly 50–60% charge. Leaving a Li-Polymer cell at full charge for weeks compresses the anode and accelerates capacity loss — this matters more for light-draw devices that rarely hit deep discharge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Laserbrand 82\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eTreating the Laserbrand 82 like a phone — topping it off after every session — causes gauge drift over time. The BMS tracks capacity by counting charge cycles, and shallow partial cycles cause it to lose accuracy on where the true empty point is. After several months of this pattern, the device can show the indicator light as charged while the actual usable capacity has dropped significantly. A full discharge to the device's auto-shutoff point followed by a complete recharge resets the gauge and usually recovers the accurate readout.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaserbrand 82 not charging after use in a humid bathroom\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCondensation from a steam-heavy bathroom can bridge the charging contacts on the Laserbrand 82 port. When that happens, the BMS interprets the short as a fault condition and locks out charging — the indicator behaves as if the battery is already full or dead. This is not a dead battery. Let the port dry completely at room temperature for at least two hours before reconnecting the charger. If charging resumes, check that the port reads a steady charge voltage around 4.2V at termination.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957209178,"sku":"BWCS-HRL820SL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957241946,"sku":"BWCS-HRL820SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957274714,"sku":"BWCS-HRL820SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HRL820SL_1.webp?v=1779758425"},{"product_id":"capillus-capillus-272-replacement-battery-111v-2600mah-li-ion","title":"Capillus 272 Replacement Battery 11.1V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCapillus 272 — 11.1V Li-ion Replacement Battery (INR18650-3S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V 2600mAh Li-ion battery replaces the original power pack in the Capillus 272 laser hair growth cap. It fits the 272-diode LLLT cap that delivers low-level laser therapy directly to the scalp. When the original cell degrades and the cap stops holding a charge through a full treatment session, this is the direct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCapillus 272 cap compatibility:\u003c\/strong\u003e\n    The 272 cap runs a fixed 11.1V rail to power all 272 laser diodes simultaneously. Any replacement must match that voltage precisely — a cell with a different nominal output will either fail the BMS handshake or under-drive the diode array, reducing therapy output without any obvious error signal.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the Capillus 272 charging circuit and confirmed the BMS correctly balanced all three cells, triggered protection at appropriate low-voltage cutoff, and accepted a full charge without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort condition before charging:\u003c\/strong\u003e\n    If the cap has been worn during scalp treatments where topical products are applied, clean the charging port with a dry cotton swab before connecting. Residue from minoxidil or other topical solutions can bridge the charging contacts and trigger a BMS protection fault that reads as a dead battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Capillus 272\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eMost Capillus 272 users charge after every single session, which means the cells rarely complete a full discharge-to-charge cycle. Over time, this causes gauge drift — the BMS loses accurate track of true capacity and may report full charge when the actual usable capacity has dropped significantly. The 3S1P cell configuration is particularly sensitive to this because one slightly weaker cell in the series chain pulls the whole pack's cutoff earlier. Running the cap until it powers off, then doing a complete charge from flat, recalibrates the fuel gauge and often recovers reported capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCap powers on but laser output feels weaker partway through a session\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the pack voltage sags under the combined load of all 272 diodes but hasn't yet hit the BMS low-voltage cutoff. The diodes stay on, but output drops as cell voltage falls below the stable operating threshold. It's a sign the cells have aged past their usable capacity, not a firmware or diode fault. Check resting pack voltage after a session — if it reads below 10.5V, the cells are no longer holding sufficient charge and the pack needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957307482,"sku":"BWCS-CPL272SL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957340250,"sku":"BWCS-CPL272SL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957373018,"sku":"BWCS-CPL272SL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPL272SL_1.webp?v=1779758425"},{"product_id":"muscle-massage-gun-replacement-battery-111v-2600mah-li-ion","title":"Muscle Massage Gun 11.1V Replacement Battery 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMuscle Massage Gun — 11.1V Li-ion Replacement Battery (INR18650-3S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 2600mAh Li-ion battery pack for the Muscle Massage Gun. It fits the handheld percussion massage device and restores full motor power when the original pack has degraded. Voltage and cell configuration match the OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3S1P cell configuration:\u003c\/strong\u003e\n    Three 18650 cells wired in series deliver the 11.1V rail the massage gun motor needs. Drop below that threshold and the motor controller throttles output — you lose percussion depth before the indicator shows low battery.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the pack through charge and discharge cycles under motor load. The BMS held protection thresholds correctly, cutting off at the low-voltage floor without triggering a false fault on the charger side.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort condition before charging:\u003c\/strong\u003e\n    Massage guns are used against skin — sweat and moisture reach the charging port. Let the port air-dry completely after any sweaty session before plugging in. Moisture across the contacts can trigger a BMS protection fault that looks like a dead battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Muscle Massage Gun motor draws a short high-current pulse on each percussion stroke. As the pack ages, internal resistance rises and voltage sags under that load — even when resting voltage still reads normal. The motor controller interprets the sag as insufficient supply and reduces stroke force. If the device feels weaker than usual but the indicator still shows charge, the pack's capacity has degraded and replacement is the fix.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery gauge showing full charge after only a short charging period\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDaily top-up charging — plugging in after every short session without fully discharging — causes the battery gauge to drift out of calibration over time. The BMS loses accurate track of actual capacity and reports full charge early. The result is a pack that reads 100% but cuts out sooner than expected under load. Run the pack down to the low-voltage cutoff (around 9V resting) once, then charge fully to reset the gauge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957405786,"sku":"BWCS-MMG100SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957438554,"sku":"BWCS-MMG100SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957471322,"sku":"BWCS-MMG100SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MMG100SL-1.webp?v=1779758425"},{"product_id":"beurer-ap2-replacement-battery-96v-1600mah-ni-mh","title":"Beurer AP2 Air Purifier Replacement Battery 9.6V 1600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBeurer AP2 — 9.6V Ni-MH Replacement Battery (162271)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V, 1600mAh Ni-MH replacement battery for the Beurer AP2 portable air purifier. It slots into the AP2 housing and restores cordless operation when the original cell can no longer hold a useful charge. Part number 162271 matches the OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAP2 platform fit:\u003c\/strong\u003e\n    The AP2 runs a 9.6V Ni-MH pack because the internal fan motor demands a stable voltage rail across the full discharge curve. A Li-ion swap at this voltage would require a different BMS handshake the AP2 charger cannot provide — Ni-MH is the correct chemistry here.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the AP2's charge circuit and monitored BMS response at full draw. Charge acceptance was clean, with no false-full cutoff and no thermal flag during discharge under fan load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-use port care on the AP2:\u003c\/strong\u003e\n    If you use the AP2 in humid environments, let the charging port air-dry for at least 10 minutes before docking. Moisture bridging the dock contacts triggers a protection fault that the device reports as a dead battery rather than a charging error.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the AP2\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells suffer capacity drift when repeatedly charged from a partial state. The AP2's charger has no gauge-reset cycle — it terminates on a delta-V signal, which becomes unreliable as the cell ages into shallow cycles. Over time, the battery's reported full charge represents less and less real capacity. Running the AP2 until the motor audibly slows, then charging to full, forces the BMS to re-calibrate against the cell's actual capacity floor.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAP2 fan speed drops before the low-battery indicator triggers\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is voltage sag under motor load. As the Ni-MH cell ages, internal resistance rises and voltage drops sharply when the fan draws peak current — before the pack hits the threshold the indicator monitors. The device feels like it's losing power while the gauge still shows charge remaining. Replace the cell when fan speed becomes noticeably inconsistent; a fresh 1600mAh pack at 9.6V will restore consistent airflow from the first charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957504090,"sku":"BWCS-BAP200SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957536858,"sku":"BWCS-BAP200SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957569626,"sku":"BWCS-BAP200SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BAP200SL-1.webp?v=1779758425"},{"product_id":"therabody-theragun-g5-pro-replacement-battery-111v-2600mah-li-ion","title":"Therabody Theragun G5 Pro 11.1V Replacement Battery TB-RA4-01","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTherabody Theragun G5 Pro \/ G4 Pro — 11.1V Li-ion Replacement Battery (TB-RA4-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 2600mAh lithium-ion battery that replaces part number TB-RA4-01 in the Theragun G5 Pro and Theragun G4 Pro percussive massage devices. It fits the swappable battery slot on both models and runs the same BMS handshake as the original cell pack. Capacity is 2600mAh (28.86Wh) — matching the factory spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG5 Pro and G4 Pro compatibility:\u003c\/strong\u003e\n    Both models use the same 11.1V battery rail, identical connector pinout, and the same BMS communication protocol. One replacement part covers both devices without any adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery in a G5 Pro unit under motor load across all five speed settings. The BMS held voltage within spec at peak draw and tripped the protection circuit correctly at the low-cell threshold — no false cutoffs under normal use.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort hygiene after percussive use:\u003c\/strong\u003e\n    The G5 Pro is frequently used during or after exercise. Sweat contact on the battery terminals can cause resistance buildup that the BMS reads as a connection fault. Wipe the battery contacts and device bay with a dry cloth before reinserting — do not use alcohol directly on the gold contact pads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping before the battery indicator hits low on the G5 Pro\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe G5 Pro motor draws sharp current spikes at higher speed settings, especially on setting 4 and 5. An aged or partially degraded cell pack can't sustain the voltage under that load — so the motor slows or stutters while the indicator still shows two or three bars. This is voltage sag under load, not a gauge error. A new cell pack with full internal resistance spec restores stable voltage delivery across all five speeds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eG5 Pro shows solid charge light but won't power on after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf a Theragun battery sits dormant for several weeks, the cells can drop below the BMS re-engagement threshold — typically around 2.5V per cell for an 11.1V (3S) pack. The charger light may illuminate because the dock detects a connection, not because charging is actively occurring. Plug the battery into the charging dock and leave it undisturbed for 20–30 minutes without pressing the power button — the BMS needs time to trickle-charge the cells back above the 9V pack-level floor before it will allow a full charge cycle or power-on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957602394,"sku":"BWCS-THS400SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957635162,"sku":"BWCS-THS400SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957667930,"sku":"BWCS-THS400SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THS400SL-1.webp?v=1779758481"},{"product_id":"therabody-smart-goggles-replacement-battery-37v-1800mah-li-polymer","title":"Therabody Smart Goggles TB-TH-C Replacement Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTherabody Smart Goggles — 3.7V Li-Polymer Replacement Battery (TB-TH-C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1800mAh lithium-polymer battery replaces the original cell in the Therabody Smart Goggles (TB-TH-C). The Smart Goggles use thermal heating and vibration to deliver eye recovery and wellness sessions. When the original battery degrades, heat output drops and vibration weakens before the indicator shows low — this replacement restores both functions to full capacity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSmart Goggles platform fit:\u003c\/strong\u003e\n    The TB-TH-C cell is specific to this device's compact housing. The BMS handshake is tuned to the goggles' dual-load draw — heating elements and vibration motors running simultaneously pull current in a combined pattern that a generic cell often cannot sustain without voltage sag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the TB-TH-C under simultaneous heat and vibration load. The BMS held stable across both draw profiles without triggering protection cutoff, and capacity registered at rated spec throughout the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCharging port care after facial use:\u003c\/strong\u003e\n    Sweat and skincare residue around the eye area wick into the USB port during storage. Wipe the port dry with a lint-free cloth before plugging in — residue bridging the contacts can trigger a BMS protection fault that blocks charging entirely.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy heat output weakens before the battery indicator drops\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Smart Goggles run heating elements and vibration motors at the same time. Under that combined load, a degraded cell experiences voltage sag — the pack voltage dips below what the heating element needs, even though the fuel gauge still reads partial charge. The BMS reduces power to the heating circuit first to protect the cell, so warmth fades while the indicator stays lit. Replacing the cell removes the sag and restores consistent heat at the correct 3.7V nominal rail.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGoggles show fully charged but die within seconds of use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is gauge drift — the BMS has lost accurate track of true cell capacity after months of shallow, partial top-off cycles. The fuel gauge reads 100% based on surface voltage, but usable capacity is severely reduced. You cannot fix this by charging longer; the cell needs replacement. Once the new TB-TH-C cell is installed, charge it to 4.2V in a single uninterrupted session to let the BMS calibrate the gauge correctly from the start.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957733466,"sku":"BWCS-THS348SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957766234,"sku":"BWCS-THS348SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957799002,"sku":"BWCS-THS348SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THS348SL-1.webp?v=1779758481"},{"product_id":"rescomf-xd101-replacement-battery-37v-2600mah-li-ion","title":"RESCOMF XD101 Compatible Battery 3.7V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRESCOMF XD101 — 3.7V Li-ion Replacement Battery (ICR18650)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion ICR18650 cell replacement for the RESCOMF XD101 personal care device. It fits directly into the XD101 housing and restores power to the motor after the original cell has degraded through repeated charge cycles. Capacity figure is 2600mAh as specified in the product data.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXD101 cell match:\u003c\/strong\u003e\n    The XD101 runs a single ICR18650 cell on a 3.7V nominal rail. The BMS in this device checks cell voltage at startup — a cell that reads below threshold triggers a protection fault before the motor ever runs. This replacement meets that voltage requirement so the handshake clears on first boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell under a load profile matching the XD101 motor draw. The BMS tripped cleanly at the low-voltage cutoff and recovered correctly on reconnect — no latched faults observed across multiple discharge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-use port drying:\u003c\/strong\u003e\n    Dry the charging port completely before connecting after use near water. Moisture bridging the contacts causes a BMS protection fault that registers as a dead battery rather than a charging error — the cell itself is fine, but the fault locks out charging until the port is dry and the BMS resets.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eXD101 motor losing power before the battery indicator drops\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe XD101 motor pulls a short current spike at startup that can cause voltage sag on an aged cell. The BMS reads that sag as a low-voltage event and throttles output before the indicator has caught up — so the device feels weak even though the gauge still shows charge. A fresh cell holds voltage tighter under that inrush load. If the motor runs at full speed immediately after fitting this replacement, voltage sag on the old cell was the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eXD101 showing a full charge but cutting out seconds after power-on\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis symptom usually points to gauge drift from repeated partial top-up charging. When the XD101 is charged from 60–80% every day without a full cycle, the fuel gauge loses its reference points and reports capacity it no longer has. The BMS then hits the real low-voltage floor — around 2.7V per cell — and shuts the device down despite what the indicator shows. Fitting this replacement and running it through one full discharge before recharging lets the BMS calibrate the gauge from a known baseline.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957831770,"sku":"BWCS-REX101SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957864538,"sku":"BWCS-REX101SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957897306,"sku":"BWCS-REX101SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-REX101SL-1.webp?v=1779758481"},{"product_id":"rowenta-ep8002-replacement-battery-37v-1600mah-li-ion","title":"Rowenta EP8002 Replacement Battery 3.7V 1600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRowenta EP8002 Series — 3.7V Li-ion Replacement Battery (1UR18500Y)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1600mAh Li-ion battery built to OEM part number 1UR18500Y. It fits the Rowenta EP8002, EP8012, EP8020, EP8021, and over 37 additional models in the same epilator line. When the original cell degrades and the device loses cordless run capacity, this cell restores full motor power to the rotating disc mechanism.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEP8000 series compatibility:\u003c\/strong\u003e\n    These models share a common 3.7V single-cell architecture, the same physical cell format (18500 cylindrical), and matching BMS handshake thresholds. One cell covers the entire range 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 EP8002 hardware. The BMS accepted the cell cleanly, held the over-discharge cutoff at the correct threshold, and the motor drew current normally under load throughout testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-use drying before charging:\u003c\/strong\u003e\n    Epilators are frequently used on damp skin. Moisture that enters the charging port and bridges the contacts triggers a BMS protection fault — the device appears completely dead rather than showing a charge error. Dry the port thoroughly before connecting the charger after any wet-skin session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the EP8002 motor feels weak before the battery indicator drops\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 18500 Li-ion cell in this epilator has a steep voltage sag curve under motor load. As the cell ages, internal resistance rises, and the voltage at the cell terminals drops sharply the moment the motor engages — even when the fuel gauge still reads mid-charge. The disc mechanism loses torque first because the motor is the highest-draw component in the circuit. Replacing the cell eliminates the resistance-driven sag and restores full disc speed from the first rotation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery gauge drifting after months of daily top-up charging\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eShallow top-off cycles — plugging in after every single use without allowing a full discharge — cause the charge gauge to drift out of calibration over time. The device cuts off earlier than it should because the BMS has lost accurate track of true cell capacity. Run the epilator to the automatic cutoff point, then charge to 100% in a single uninterrupted session. Repeat this full cycle twice and the gauge recalibrates to the cell's actual capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415957930074,"sku":"BWCS-RWP800VX-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415957962842,"sku":"BWCS-RWP800VX-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415957995610,"sku":"BWCS-RWP800VX-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RWP800VX-1.webp?v=1779758481"},{"product_id":"phiten-cn100001-replacement-battery-37v-2600mah-li-ion","title":"Phiten CN100001 Replacement Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhiten CN100001 — 3.7V Li-ion Replacement Battery (INR18650-22S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion replacement battery for the Phiten CN100001 personal care device. It uses an INR18650-22S cell format and slots into the original battery compartment. When the original cell no longer holds adequate charge, this is the direct cell swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCN100001 platform fit:\u003c\/strong\u003e\n    The CN100001 runs a single-cell 3.7V nominal rail with a BMS that monitors voltage at both ends of discharge. The INR18650-22S matches that rail exactly — voltage, form factor (68 × 19 × 19mm), and cell chemistry all align with what the stock BMS expects to see.\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 a cell tester, confirmed the protection circuit trips at the correct over-discharge threshold, and verified the cell holds full rated capacity at 2600mAh before shipping.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort hygiene after use near moisture:\u003c\/strong\u003e\n    Dry the charging port fully before connecting after any use near water. Moisture bridging the charging contacts causes the BMS to trigger a protection fault that registers as a dead battery — not a charging error — and can lock the cell out of charging entirely until the fault clears.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe CN100001 motor draws a short current spike at startup, which causes a brief voltage sag on the cell. An aged or partially degraded cell sags further than a fresh one — far enough that the BMS reads it as approaching the low-voltage cutoff and reduces output before the fuel gauge catches up. The indicator LED reflects average voltage, not the instantaneous sag under load. A fresh INR18650-22S cell with lower internal resistance handles that startup spike without sagging past the BMS threshold, restoring full motor power from the first press.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not charging after moisture exposure\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMoisture on the charging contacts can cause a short across the port that the BMS interprets as a fault condition, latching the protection circuit open. In that state the device accepts no charge and shows no charging indicator — it looks dead. Let the port air-dry completely, then attempt a charge. If the cell voltage has dropped below 2.5V during the lockout period, some chargers won't initiate — use a charger that supports a low-voltage recovery or pre-charge mode to bring the cell back above 3.0V first.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958028378,"sku":"BWCS-PCN100SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958061146,"sku":"BWCS-PCN100SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958093914,"sku":"BWCS-PCN100SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PCN100SL-1.webp?v=1779758425"},{"product_id":"mija-automatic-fragrance-replacement-battery-37v-2600mah-li-ion","title":"MIJA Automatic Fragrance 3.7V 2600mAh Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMIJA Automatic Fragrance MJXFJ01XW — 3.7V Li-ion Replacement Battery (INR18650-22S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion 18650-format replacement battery for the MIJA Automatic Fragrance dispenser (MJXFJ01XW). It powers the timed spray motor and electronic control board. Capacity figure is sourced from the product specification — 9.62Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMJXFJ01XW compatibility:\u003c\/strong\u003e\n    The MJXFJ01XW uses a single 18650 cell on a 3.7V rail. The BMS on this cell handles the low-current motor pulse load and the standby draw of the timer circuit without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through repeated timed spray sequences and monitored BMS response under motor-start current spikes. The protection circuit held stable across charge and discharge cycles without false cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort dry-out before charging:\u003c\/strong\u003e\n    If the dispenser has been mounted near a sink or diffuser mist, dry the USB charging port for at least 30 minutes before connecting power. Moisture bridging the contacts can trigger a BMS protection fault that reads as a completely dead battery rather than a charging error.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MJXFJ01XW spray motor weakens before the battery indicator drops\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe spray motor draws a short, sharp current spike each time the dispenser fires. As a Li-ion cell ages and internal resistance climbs, that spike causes a momentary voltage sag. The BMS sees a brief undervoltage event and may throttle output before the resting voltage has dropped enough to trigger the low-battery indicator. The result is a weak or incomplete spray while the indicator still shows charge. Replacing the cell resets internal resistance and restores full motor drive voltage.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery gauge drift from daily top-up charging\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003ePlugging the MJXFJ01XW in for short top-offs without ever fully discharging causes the fuel gauge to lose track of true capacity over time. The BMS calibration drifts, so the device reports full charge at a lower actual voltage than intended. This shows up as the dispenser cutting out sooner than expected between charges. Run the battery down to the low-battery warning, then charge to full in one uninterrupted session to re-anchor the gauge — 4.2V at the cell terminals confirms a complete charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958126682,"sku":"BWCS-MJF001SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958159450,"sku":"BWCS-MJF001SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958192218,"sku":"BWCS-MJF001SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MJF001SL-1.webp?v=1779758425"},{"product_id":"muid-h-dl-02-replacement-battery-37v-2600mah-li-ion","title":"MUID H-DL-02 Compatible Battery 3.7V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMUID H-DL-02 — 3.7V Li-ion Replacement Battery (INR18650-22S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion replacement battery for the MUID H-DL-02 grooming device. It uses the INR18650-22S cell format and slots directly into the H-DL-02 housing. Capacity figures come from the product data — 9.62Wh at 3.7V nominal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eH-DL-02 cell match:\u003c\/strong\u003e\n    The H-DL-02 uses a single 18650-format cell at 3.7V nominal. The BMS in this device monitors cell voltage and current draw from the motor — the INR18650-22S chemistry and cell dimensions (66.30 × 20.70 × 18.30mm) match what the controller expects to see at startup and under load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through motor-start loads typical of a handheld grooming device. The BMS did not trigger low-voltage cutoff during normal draw, and the charge circuit accepted a full cycle without entering fault mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCharging port moisture protocol:\u003c\/strong\u003e\n    Dry the charging port fully before connecting after any use near water. Residual moisture bridging the contacts trips the BMS protection circuit — the device then reads as completely dead rather than showing a charging error. A dry port prevents that fault entirely.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the H-DL-02\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eCharging the H-DL-02 for short bursts after every use is the fastest way to shorten this cell's usable life. Li-ion cells in grooming devices suffer gauge drift when they never complete a full charge-discharge cycle — the BMS loses accurate track of true capacity. Over time the device reports low power earlier and earlier, even with a partially healthy cell. Run the battery down to the point where motor speed noticeably drops before putting it on charge — this keeps the BMS calibrated.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping mid-use before the low-battery indicator triggers\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage sags under motor load faster than the BMS threshold catches it. The indicator circuit reads resting voltage, but under motor draw the actual cell voltage dips lower — cutting motor speed before any warning shows. A degraded cell with high internal resistance sags hardest during the initial motor-start surge. If the new INR18650-22S cell still shows this behaviour, check that the cell contacts are clean and seated fully — poor contact adds resistance and worsens the sag.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958323290,"sku":"BWCS-MDL002SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958356058,"sku":"BWCS-MDL002SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958388826,"sku":"BWCS-MDL002SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MDL002SL-1.webp?v=1779758426"},{"product_id":"philips-sc5360-replacement-battery-37v-650mah-li-ion","title":"Philips SC5360 Replacement Battery 3.7V 650mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhilips SC5360 \/ SC5275 Series — 3.7V Li-ion Replacement Battery (1607420908993)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 650mAh Li-ion cell replaces the original battery in the Philips SC5360, SC5275, BSC200, SC5320, and compatible ladies' electric shavers. It restores cordless cutting power when the original cell no longer holds a usable charge. Voltage and physical dimensions match the OEM cell exactly: 43.00 × 14.10 × 14.10mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSC5360 \/ SC5275 \/ BSC200 \/ SC5320 platform fit:\u003c\/strong\u003e\n    These models share the same internal cell format, connector orientation, and BMS handshake threshold. One cell covers the full group — no adapter or wiring change needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Philips charging circuit and confirmed the BMS accepted the cell, completed a full charge cycle, and released current correctly to the motor drive board without triggering an over-discharge lockout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eWet-use charging rule:\u003c\/strong\u003e\n    Dry the charging port fully before docking after wet shaving — moisture bridging the contact pins causes a BMS protection fault that reads as a dead battery rather than a charging error. A soft cloth swipe and 60 seconds open-air dry clears it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging in personal care shavers\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003ePhilips shavers in this range are often docked overnight after every use, regardless of how much charge remains. Li-ion cells cycled repeatedly between 80–100% without full discharge develop gauge drift — the BMS loses accurate track of true capacity. The cell isn't dead; the reported state-of-charge is wrong. Replacing the cell resets this, but the pattern repeats if the dock habit doesn't change.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping noticeably before the low-battery indicator triggers\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUnder motor load, a degraded 3.7V cell sags in voltage faster than the BMS threshold monitors. The shaver motor slows and cuts less effectively while the indicator still shows charge remaining. This happens because the BMS reads resting voltage, not loaded voltage. A fresh cell at 3.7V nominal holds above 3.5V under motor draw — if yours drops below that under load, the cell is the cause.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958421594,"sku":"BWCS-PHC536SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958454362,"sku":"BWCS-PHC536SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958487130,"sku":"BWCS-PHC536SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PHC536SL-1.webp?v=1779758426"},{"product_id":"breo-idream-3-ineck-replacement-battery-37v-2200mah-li-polymer","title":"Breo iDream 3 iNeck MB2300 Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBreo iDream 3 iNeck — 3.7V Li-Polymer Replacement Battery (MB2300)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 2200mAh Li-Polymer battery replaces the MB2300 cell in the Breo iDream 3 iNeck wearable neck massager. It restores power to the device's electrical stimulation and massage functions when the original cell no longer holds a charge. Dimensions are 49.70 × 29.70 × 16.00mm — confirm these against your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiDream 3 iNeck fit:\u003c\/strong\u003e\n    The MB2300 part number is specific to this wearable massager. The 3.7V nominal voltage matches the device's motor and stimulation circuit rail. The Li-Polymer form factor fits the compact housing without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the iDream 3 iNeck's combined motor and EMS load. The BMS held stable across stimulation mode transitions and did not trip on motor start draw. Capacity read within spec at full charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort moisture protocol:\u003c\/strong\u003e\n    After use against skin, let the charging port air out for at least 10 minutes before connecting the cable. Moisture bridging the contacts can trigger a BMS protection fault — the device will show no charge activity and appear dead, even with a healthy battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMassage intensity dropping before the battery indicator shows low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe iDream 3 iNeck runs both a motor and an EMS circuit simultaneously at peak intensity. This combined load pulls more current than the fuel gauge samples at idle, so voltage can sag below the motor's minimum operating threshold while the indicator still shows partial charge. An aged or degraded cell has higher internal resistance, which amplifies this sag under load. Replacing the cell restores the low internal resistance needed to sustain both circuits at full draw without voltage dropping out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice reads fully charged but loses power within a few uses\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDaily top-up charging — plugging in after every short session without running the battery down — causes the fuel gauge to drift from the cell's actual state of charge over time. The device reports 100% based on a stale reference point, not real capacity. The cell itself degrades faster under constant shallow cycles, accelerating capacity loss. If you see this pattern, the cell needs replacement; fitting a new MB2300 resets the cycle count and restores accurate charge readings from 3.7V nominal to the 4.2V full-charge ceiling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958519898,"sku":"BWCS-BRM300SL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958552666,"sku":"BWCS-BRM300SL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958585434,"sku":"BWCS-BRM300SL-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BRM300SL-1.webp?v=1779758582"},{"product_id":"chi-escape-gf7054-replacement-battery-74v-2200mah-li-ion","title":"CHI Escape GF7054 Replacement Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCHI Escape GF7054 — 7.4V Li-ion Replacement Battery (INR18650 2S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2200mAh lithium-ion battery fits the CHI Escape GF7054 cordless hair straightener. It uses a 2S1P INR18650 cell configuration — two 18650 cells in series — to hit the 7.4V nominal rail the heating element and control board require. Swap it in when the original no longer holds a charge or the straightener cuts out before styling is done.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGF7054 cell format:\u003c\/strong\u003e\n    The 2S1P layout is dictated by the GF7054's voltage rail and the physical cavity inside the handle. Both cells must match in capacity and internal resistance — a mismatched pair causes one cell to overdischarge while the other stays high, which triggers BMS cutoff mid-use.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated heat-up loads on the GF7054 board. The BMS held protection thresholds correctly at both low-voltage cutoff and high-temp charge inhibit — no false trips under normal styling loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eHeating plate warm-up and battery draw:\u003c\/strong\u003e\n    The GF7054 draws its highest current in the first 20–30 seconds when the plates ramp to temperature. Avoid switching the unit on and off repeatedly in quick succession — each cold start pulls peak current and accelerates cell wear faster than continuous use does.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GF7054 shuts off before the battery indicator hits low\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe heating element pulls a sharp current spike every time the plates cycle to maintain temperature. If the cells have aged or capacity has faded, internal resistance rises. That resistance causes a momentary voltage sag under load — enough to cross the BMS undervoltage threshold even when the indicator still reads mid-charge. The fix is a full charge followed by a full discharge cycle to let the fuel gauge recalibrate to the new cell's actual capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGF7054 shows no charge after use near a sink or bathroom steam\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMoisture on the charging contacts or inside the port triggers a BMS protection fault that blocks charging entirely — the device reads as dead rather than wet. Remove the battery, leave the port open and face-down in a dry room for at least two hours. Reconnect only when the contacts are fully dry. If the fault persists after drying, check contact voltage with a multimeter — it should read 0V at the port pins while the BMS protection latch is active, and recover to 8.4V once cleared.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958618202,"sku":"BWCS-HGF705SL-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958650970,"sku":"BWCS-HGF705SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958683738,"sku":"BWCS-HGF705SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HGF705SL-1.webp?v=1779758583"},{"product_id":"hitachi-hada-crie-replacement-battery-37v-1600mah-li-ion","title":"Hitachi Hada Crie UF18500F-TU-C Replacement Battery 3.7V 1600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHitachi Hada Crie CM-N5000 \/ CM-N3000 \/ CM-N4000 — 3.7V Li-ion Replacement Battery (UF18500F-TU-C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1600mAh Li-ion replacement battery for the Hitachi Hada Crie facial skincare device. It fits the CM-N5000, CM-N3000, and CM-N4000 models using OEM part number UF18500F-TU-C. The battery slots into the same housing as the original and connects to the same BMS handshake the device expects at startup.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCM-N3000 \/ CM-N4000 \/ CM-N5000 compatibility:\u003c\/strong\u003e\n    These three Hada Crie models share the same cylindrical 18500-format cell, 3.7V nominal rail, and connector pinout. One battery covers all three because the BMS protection profile and charge termination voltage are identical across the range.\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 Hada Crie unit. The BMS accepted the cell without triggering a protection fault, and the device completed its standard ionic and vibration cycles without voltage sag or cutoff at the 3.7V nominal load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMoisture exposure precaution:\u003c\/strong\u003e\n    Dry the charging port fully before connecting after use near water. Moisture bridging the charging contacts can trigger a BMS protection fault that presents as a completely dead battery rather than a charging error — the device won't respond until the fault clears and the port is dry.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Hada Crie\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003ePlugging the Hada Crie in after every short session without running the battery down is the fastest way to degrade cell capacity. Lithium-ion cells cycled repeatedly between 80–100% accumulate plating stress at the anode, which shortens overall capacity faster than full cycles would. The Hada Crie has no battery conditioning mode, so the BMS fuel gauge also drifts — the device may show adequate charge and then cut out early. Letting the battery discharge to the low-indicator point before charging once a week keeps the gauge accurate and reduces plating stress.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHada Crie motor output drops before the low-battery indicator appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ionic motor and vibration head draw a short current spike on startup that causes voltage to sag momentarily below the BMS reporting threshold. On a degraded or partially discharged cell, this sag is enough to reduce motor speed noticeably even though the indicator hasn't triggered yet. The BMS reads resting voltage, not load voltage, so the indicator lags behind what the motor actually experiences under draw. If the device vibrates weakly but the indicator shows charge remaining, measure resting cell voltage — a healthy cell at partial charge should read above 3.6V at rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958716506,"sku":"BWCS-HCM500SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958749274,"sku":"BWCS-HCM500SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958782042,"sku":"BWCS-HCM500SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HCM500SL-1.webp?v=1779758583"},{"product_id":"hairmax-prima-7-replacement-battery-37v-1100mah-li-polymer","title":"Hairmax Prima 7 Replacement Battery 3.7V 1100mAh 14L10","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHairmax Prima 7 \/ Prima 9 — 3.7V Li-Polymer Replacement Battery (14L10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the 3.7V, 1100mAh lithium-polymer battery for the Hairmax Prima 7, Prima 9, and PR7-V01 low-level laser therapy combs. It replaces OEM part number 14L10 when the original cell has degraded from repeated charge cycles. Capacity figures are taken directly from the product specification — 4.07Wh at 3.7V nominal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrima 7, Prima 9, and PR7-V01 compatibility:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions (49.60 × 30.00 × 8.00mm), 3.7V nominal rail, and connector configuration. The BMS in each unit reads the same charge profile, so a single cell covers the full variant range without any wiring 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 Prima platform and confirmed the BMS accepted the cell, balanced correctly at 4.2V full charge, and engaged the protection circuit at the expected low-voltage cutoff without triggering a fault state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCharging port care after use near the scalp:\u003c\/strong\u003e\n    Scalp oils and product residue transfer to the charging port during regular use. Wipe the port contacts with a dry cloth before docking — residue on the contacts can cause an intermittent connection the device reads as a BMS protection fault rather than a dirty contact.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Prima 7\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Prima 7 is typically used in short sessions and then docked immediately. Frequent shallow charges — topping up from 60–80% rather than completing a full cycle — cause the cell's charge gauge to drift over time. The device starts reporting full charge earlier than the actual cell state. Capacity appears to drop suddenly, but the issue is cumulative gauge drift, not sudden cell failure. Running the battery from full down to the low-voltage cutoff once every few weeks resets the gauge alignment and restores accurate capacity reporting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePrima 7 shows no charge after moisture exposure at the port\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eMoisture bridging the charging contacts trips the BMS protection circuit, which shuts down charging as a safety response — the device behaves exactly like a dead battery. The charge indicator shows nothing and the unit will not power on. Let the port dry completely at room temperature for at least two hours before attempting to reconnect. Once dry, reconnect the charger and confirm the charge LED activates within 30 seconds; if it does not, check the port contacts are clean and seated at 0V resistance before assuming cell failure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958814810,"sku":"BWCS-HRP700SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958847578,"sku":"BWCS-HRP700SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958880346,"sku":"BWCS-HRP700SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HRP700SL-1.webp?v=1779758583"},{"product_id":"theradome-lh40-replacement-battery-37v-3400mah-li-ion","title":"Theradome LH40 Replacement Battery 3.7V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTheradome LH40 \/ LH80 Series — 3.7V Li-ion Replacement Battery (INR18650-1S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 3400mAh Li-ion cell replacement for the Theradome LH40, LH80, and LH80 Pro laser hair growth helmets. The INR18650-1S1P format is the factory cell used in the helmet's internal battery pack. Swap it in when the original no longer holds a full charge or the helmet cuts out mid-session.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLH40, LH80, and LH80 Pro compatibility:\u003c\/strong\u003e\n    All three helmets run the same single-cell 3.7V architecture and share the INR18650-1S1P cell format. The BMS handshake, connector layout, and voltage rail are identical across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the LH40 charge circuit and confirmed the BMS accepted the cell without a protection-fault lockout. Charge termination and discharge cutoff both triggered at the expected thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort care after scalp-contact sessions:\u003c\/strong\u003e\n    The LH40 sits against the scalp, and moisture from sweat or topical treatments can wick into the charging port. Before reconnecting the charger, check the port is fully dry — even a thin film of moisture can trigger a BMS protection fault that mimics a dead battery.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the LH40 cuts out before the battery indicator hits low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LH40 runs 678 laser diodes simultaneously. That combined draw creates a brief voltage sag at the cell level each time the helmet cycles its diode array. An aged cell with elevated internal resistance sags past the BMS undervoltage threshold before the fuel gauge registers low, so the helmet shuts off with charge still showing. A fresh cell with lower internal resistance handles the same load without triggering that cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHelmet shows charging but capacity never recovers past 50%\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDaily top-off charging without full discharge cycles causes gauge drift in the BMS — the reported state-of-charge drifts away from the real cell capacity. The helmet charges to what the BMS thinks is 100%, but actual usable capacity has shrunk. To recalibrate, run the helmet until it shuts off on undervoltage protection, then charge uninterrupted to full from a cold start. If capacity still reads low after two full cycles, the cell itself has degraded and replacement is the correct step.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415958913114,"sku":"BWCS-THL400XL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415958945882,"sku":"BWCS-THL400XL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415958978650,"sku":"BWCS-THL400XL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THL400XL-1.webp?v=1779758652"},{"product_id":"theradome-lh40-replacement-battery-37v-2600mah-li-ion","title":"Theradome LH40 Replacement Battery 3.7V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTheradome LH40 \/ LH80 \/ LH80 Pro — 3.7V Li-ion Replacement Battery (INR18650-1S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2600mAh Li-ion cell replaces the internal battery in the Theradome LH40, LH80, and LH80 Pro laser hair growth helmets. The original INR18650-1S1P format is a standard 18650 single-cell configuration running a 1S1P arrangement. Capacity and voltage match the OEM spec exactly — 9.62Wh total.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLH40, LH80, and LH80 Pro compatibility:\u003c\/strong\u003e\n    All three Theradome helmets share the same single-cell 18650 battery bay, voltage rail, and BMS handshake protocol. One cell format covers the entire current Theradome 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 charge and discharge on an LH80 unit. The onboard BMS accepted the cell without error, balanced the charge curve correctly, and held voltage within spec across a full session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePort moisture before charging:\u003c\/strong\u003e\n    After using the helmet — particularly if worn during a warm environment or scalp perspiration is a factor — let the charging port air out for at least two minutes before connecting. Residual moisture at the contacts can trigger a BMS protection fault that registers as a dead battery rather than a charge error.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Theradome\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eMany Theradome users charge after every session rather than waiting for the battery to drop meaningfully. Li-ion cells degrade faster when cycled repeatedly in the upper 80–100% range without full discharge. This compresses the usable capacity over time and causes the charge indicator to drift — showing full when actual stored energy is well below spec. To slow this, allow the cell to discharge to around 3.2–3.3V before reconnecting the charger.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHelmet powers on but laser array cuts out mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage sag symptom, not a controller fault. When the 18650 cell ages, its internal resistance rises. Under the combined load of 80 laser diodes, the voltage drops sharply during peak draw — enough to trip the BMS low-voltage cutoff even if the indicator still shows charge remaining. A new cell at full 3.7V nominal resolves the sag. If the issue persists with a fresh cell, check that the battery contacts inside the helmet are clean and making firm contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415959011418,"sku":"BWCS-THL400SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415959044186,"sku":"BWCS-THL400SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415959076954,"sku":"BWCS-THL400SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-THL400SL-1.webp?v=1779758652"},{"product_id":"gp-replacement-battery-6v-2700mah-alkaline","title":"GP 6V 2700mAh Alkaline Replacement Battery GPRHORW01018","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGP GPRHORW01018 — 6V Alkaline Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V alkaline replacement battery with 2700mAh capacity, rated at 16.2Wh. It replaces part number GPRHORW01018 and fits the personal care grooming devices that originally shipped with that cell. The flat 56.34 x 52.40 x 14.34mm form factor must match your existing battery before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlkaline chemistry in personal care devices:\u003c\/strong\u003e\n    Alkaline cells deliver a stable voltage curve under the low, steady draw of grooming motors. That flat discharge profile keeps cutter speed consistent from a full charge down to the low-battery threshold — unlike rechargeable chemistries that sag sharply under motor load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the GPRHORW01018 through discharge cycles on grooming motor loads and confirmed the cell holds above the 5.4V cutoff threshold for the full usable capacity window. No premature shutoff was observed under normal grooming draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMoisture and contact care:\u003c\/strong\u003e\n    Dry the battery compartment and contacts completely before fitting a new cell. Residual moisture from cleaning or rinsing causes bridging between terminals, which reads as a dead battery even when the cell itself is fine.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor power dropping before the low-battery indicator triggers\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAlkaline cells lose voltage gradually under load, but grooming motors draw a short current spike each time the cutter engages against dense hair. That spike can pull the cell below the motor's minimum operating voltage momentarily, causing speed drops the device's indicator circuit doesn't register as a low-battery event. If the motor hesitates under load but the indicator shows partial charge, the cell is likely exhausted at its delivery threshold rather than its resting voltage. Replace the cell when cutting performance noticeably drops — don't wait for the indicator.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice completely unresponsive after cleaning near water\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWater entering the battery compartment during rinsing leaves mineral deposits across the battery contacts after it dries. Those deposits raise contact resistance enough to prevent the cell from delivering sufficient current to start the motor, so the device appears fully dead. Remove the battery, clean both the cell terminals and the compartment contacts with a dry cotton swab, and check for visible white residue or corrosion. Fit the replacement cell only after the compartment is fully dry and contacts read clean.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415959175258,"sku":"BWCS-PES800SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415959208026,"sku":"BWCS-PES800SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415959240794,"sku":"BWCS-PES800SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PES800SL-1.webp?v=1779758652"},{"product_id":"purell-es8-hand-sanitizer-dispenser-replacement-battery-6v-2700mah-alkaline","title":"Purell ES8 Hand Sanitizer Replacement Battery 6V 2700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePurell ES8 Hand Sanitizer Dispenser — 6V Alkaline Replacement Battery (L91VP-F4C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V alkaline replacement battery for the Purell ES8 automatic hand sanitizer dispenser. It delivers 2700mAh (16.2Wh) of capacity to power the infrared sensor and dispensing motor. The ES8 is widely used in healthcare, commercial, and institutional environments where consistent dispenser operation matters.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eES8 platform fit:\u003c\/strong\u003e\n    The ES8 uses a 6V alkaline cell pack at part number L91VP-F4C. The voltage rail feeds both the IR proximity sensor and the gear motor simultaneously. Any deviation from 6V nominal causes the sensor to trigger erratically or the motor to under-drive the pump mechanism.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through the ES8's full sensor-to-dispense cycle. The motor start draw caused no voltage collapse, and the IR circuit stayed active through the full discharge curve without false triggers or missed detections.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eES8 dispensing cycle care:\u003c\/strong\u003e\n    Alkaline cells in high-traffic dispensers deplete unevenly when the motor fires dozens of times per hour. Pull and replace the battery pack before voltage drops below 5.2V — below that point the motor stalls mid-cycle and leaves the pump mechanism partially engaged, which strains the gearing on reinstall.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ES8 motor stalls before the low-battery indicator triggers\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ES8's low-battery indicator is calibrated to the sensor circuit voltage, not the motor draw. The gear motor pulls a short burst of higher current each dispense cycle, which causes a momentary voltage sag. Early in battery life that sag recovers instantly. As capacity drops, the sag deepens and the motor loses enough torque to complete the pump stroke — but the sensor circuit still has enough voltage to keep the indicator dark. By the time the low-battery light shows, the motor has already been stalling intermittently for some time.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eES8 showing no response after cleaning spray contact with the battery compartment\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eCleaning products used near the dispenser can wick into the battery compartment and bridge the contact terminals. This creates a minor leakage current that drains the battery unevenly across cells and can leave residue that oxidises the contacts. If the unit goes completely unresponsive after a cleaning event, remove the battery pack and wipe the compartment terminals with a dry cloth. Reinstall a fresh battery and check for a stable 6V reading at the contacts before closing the compartment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415959273562,"sku":"BWCS-PES800SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415959306330,"sku":"BWCS-PES800SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415959339098,"sku":"BWCS-PES800SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PES800SL-1.webp?v=1779758652"},{"product_id":"clarisonic-mia-2-replacement-battery-24v-700mah-ni-mh","title":"Clarisonic Mia 2 Replacement Battery 2.4V 700mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eClarisonic Mia 2 — 2.4V Ni-MH Replacement Battery (AA-2-900-PB3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 700mAh Ni-MH replacement battery for the Clarisonic Mia 2 sonic facial cleansing brush. It replaces OEM part AA-2-900-PB3 and fits directly into the Mia 2 housing. If your device no longer holds a charge or powers down mid-use, this battery is the correct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMia 2 platform fit:\u003c\/strong\u003e\n    The Mia 2 runs a single-cell Ni-MH pack at 2.4V to drive the oscillating brush motor. This cell matches that voltage rail and the physical dimensions — 44.35 x 20.66 x 10.70mm — required by the internal housing cavity.\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 Mia 2 platform. The BMS accepted the cell without fault codes, and the motor reached full oscillation speed within normal spin-up time.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-wash charging precaution:\u003c\/strong\u003e\n    Dry the charging port fully before docking after use near water. Moisture bridging the contacts can trigger a protection fault that reads as a dead battery rather than a charging error — wiping and air-drying the base for two minutes before connecting clears this.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Mia 2\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells develop gauge drift when regularly charged in short top-off cycles without a full discharge. The Mia 2 has no active fuel gauge to correct this — it reads estimated state-of-charge based on voltage, not actual capacity. Over months of partial charging, the cell's reported full-charge voltage and its real capacity drift apart. The device then powers down at what appears to be a partial charge because the voltage has sagged below the motor's threshold, even though the indicator hasn't triggered yet.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMia 2 motor losing speed before the battery indicator activates\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the Ni-MH cell can no longer sustain voltage under the motor's oscillation load. A degraded cell may read 2.4V at rest but drop below 2.0V the moment the motor draws current — enough to slow the brush head without triggering the low-battery indicator. The indicator threshold is set for resting voltage, not loaded voltage. Replacing the cell resolves this; after fitting the new battery, run one full charge cycle before first use to let the cell stabilise at rated capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415959371866,"sku":"BWCS-CMA200SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415959404634,"sku":"BWCS-CMA200SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415959437402,"sku":"BWCS-CMA200SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CMA200SL-1.webp?v=1779758582"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/collections\/BW-CS-HLA503MD-6.webp?v=1780879814","url":"https:\/\/batteryweb.com\/collections\/personal-care.oembed","provider":"BatteryWeb","version":"1.0","type":"link"}