{"title":"Keyboard \u0026 Mouse","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA wireless keyboard or mouse is one of those things you stop noticing until the battery dies mid-sentence or right in the middle of something important. The whole appeal of going wireless is the clean, cable-free setup — and a dead battery is the fastest way to remind yourself how much you depend on these two peripherals to get anything done. Keeping the right batteries on hand means you're never more than a minute away from being back up and running.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWe carry replacement batteries for the full range of wireless keyboards and mice — from everyday office peripherals to high performance gaming setups and ergonomic Bluetooth devices from brands like Logitech, Microsoft, and beyond. Whether your setup runs on AA, AAA, or a rechargeable battery pack, finding the right fit here is quick and straightforward. Stock up, keep a spare set in your desk drawer, and never let two AA batteries be the reason your workday or gaming session comes to a grinding halt.\u003c\/p\u003e","products":[{"product_id":"corsair-k57-rgb-wireless-gaming-keyboard-replacement-battery-37v-3400mah-li-ion","title":"Corsair K57 RGB Replacement Battery RDJ15 3.7V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCorsair K57 RGB Wireless Gaming Keyboard — 3.7V Li-ion Replacement Battery (RDJ15)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 3400mAh Li-ion battery that replaces the internal rechargeable cell in the Corsair K57 and K57 RGB Wireless Gaming Keyboard. It restores wireless operation when the original battery no longer holds a charge. Capacity is rated at 12.58Wh and dimensions are 38.20 × 18.60 × 18.60mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK57 and K57 RGB platform fit:\u003c\/strong\u003e\n    Both K57 variants share the same battery bay geometry, connector pinout, and BMS communication protocol — which is why a single cell covers the full platform.\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 K57 RGB. The BMS accepted the cell without fault flags, RGB polling remained stable, and the wireless receiver held its 2.4GHz link throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB load management on the K57:\u003c\/strong\u003e\n    Per-key RGB lighting draws significantly more current than standard wireless keyboards. Keep lighting profiles at mid-brightness or lower during wireless use — full-brightness animations are the single largest drain on this cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePairing lost after battery swap on the K57\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss during battery removal can wipe the keyboard's stored pairing state. The K57 stores its 2.4GHz link to the USB receiver in volatile memory that clears when voltage drops to zero. After fitting the new cell, hold the wireless connect button on the keyboard until the indicator flashes, then replug the USB receiver. This forces a fresh handshake and restores normal wireless operation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK57 RGB not powering on after sitting unused for several months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that sit discharged below roughly 2.5V enter a deep-discharge state where the BMS blocks normal charging as a protection measure. Plug the keyboard in via USB-C and leave it connected for at least 30–45 minutes before pressing the power button — the charger needs time to trickle the cell back above the BMS re-enable threshold. If the keyboard still shows no activity after that period, check that the cable is delivering power to the port and not just a data-only connection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43306856874074,"sku":"BWCS-CRK570XL-1","price":306.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43306856906842,"sku":"BWCS-CRK570XL-2","price":366.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43306856939610,"sku":"BWCS-CRK570XL-3","price":411.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CRK570XL_1.webp?v=1777768811"},{"product_id":"corsair-k57-rgb-wireless-gaming-keyboard-replacement-battery-37v-2600mah-li-ion","title":"Corsair K57 RGB Wireless Gaming Keyboard Replacement Battery RDJ15 3.7V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCorsair K57 RGB Wireless Gaming Keyboard — 3.7V Li-ion Replacement Battery (RDJ15)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 2600mAh Li-ion battery replaces the internal RDJ15 cell in the Corsair K57 and K57 RGB Wireless Gaming Keyboard. It restores power to both the wireless receiver link and the onboard RGB lighting. Fit the correct cell and the keyboard returns to full function — no firmware changes needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK57 and K57 RGB compatibility:\u003c\/strong\u003e\n    Both variants share the same internal battery bay, connector pinout, and BMS handshake. The RDJ15 part number covers the full K57 wireless line, so one cell fits every board in that range.\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 K57 RGB unit. The onboard BMS accepted the cell without flagging a fault, RGB lighting initialised at full brightness, and the 2.4GHz wireless link held stable throughout testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB draw and charge cycles:\u003c\/strong\u003e\n    The K57 RGB runs lighting and wireless simultaneously from this single cell. Heavy RGB profiles accelerate cycle count faster than office keyboards. Keep RGB effects at mid-brightness when the keyboard is on battery to extend cell life between charges.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePairing lost after replacing the K57 battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss wipes the volatile pairing state on some Corsair wireless keyboards. When the K57 loses all cell voltage during a swap, the USB receiver can no longer find the keyboard on first boot. Unplug the USB receiver, hold the keyboard's wireless connect button for three seconds, then re-insert the receiver. The keyboard re-advertises and the receiver locks on within a few seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK57 RGB shows charging but voltage won't climb past 3.5V\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA cell that sits discharged for an extended period can drop below the BMS recovery threshold, typically around 2.5V. At that point the charger circuit enters trickle mode and may stall before reaching the 4.2V full-charge target. If the keyboard charges for over two hours and the indicator still shows partial, remove the cell, wait 60 seconds, refit it, then reconnect USB power. This resets the charge controller handshake and allows a normal CC\/CV charge cycle to begin.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43306856972378,"sku":"BWCS-CRK570SL-1","price":206.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43306857005146,"sku":"BWCS-CRK570SL-2","price":246.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43306857037914,"sku":"BWCS-CRK570SL-3","price":276.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CRK570SL_1.webp?v=1777768812"},{"product_id":"logitech-g-pro-x-superlight-2-gaming-mouse-replacement-battery-38v-290mah-li-polymer","title":"Logitech G Pro X Superlight 2 Compatible Battery 3.8V 290mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G Pro X Superlight 2 Gaming Mouse — 3.8V Li-Polymer Replacement Battery (533-000228)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 290mAh lithium-polymer replacement battery for the Logitech G Pro X Superlight 2 wireless gaming mouse. It replaces OEM part number 533-000228 directly. When the original cell degrades and the mouse can no longer hold a charge through a session, this battery restores full wireless operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG Pro X Superlight 2 fit:\u003c\/strong\u003e\n    The Superlight 2 runs a single-cell Li-Polymer pack at 3.8V nominal — a tighter voltage rail than older Logitech wireless mice. The BMS inside the mouse checks cell voltage on startup, so the replacement cell must sit within the original voltage window or the mouse refuses to power on.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We connected this cell to the Superlight 2 charge and discharge circuit. The BMS accepted the cell without fault flags, charge termination fired at the correct cutoff, and the mouse paired normally over the LIGHTSPEED receiver.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLi-Polymer swelling watch:\u003c\/strong\u003e\n    The Superlight 2 shell is extremely thin — clearance around the battery is minimal. If the original cell has swollen at all, do not force the new cell in. A swollen cell means the old one needs careful extraction before fitting the replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the G Pro X Superlight 2 won't power on after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Superlight 2 BMS runs a startup voltage check before enabling the power rail to the sensor and wireless module. If the replacement cell ships at storage voltage — typically around 3.6V — and the BMS threshold sits above that, the mouse stays dark. Connecting the mouse to USB for 10–15 minutes before pressing the power button allows the charging circuit to raise cell voltage into the acceptable window. If the mouse still doesn't respond, check that the battery connector is fully seated — the flat FPC connector on this mouse can appear locked without actually making contact.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering or lag appearing before the low-battery light triggers\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe LIGHTSPEED wireless module in the Superlight 2 begins reducing its transmission power as cell voltage drops toward 3.5V — this happens before the LED low-battery indicator fires. The result is intermittent pointer lag or micro-stutters that look like a tracking issue but are actually a voltage issue. Replug the USB receiver into a different port to rule out USB interference, then check battery voltage. If the cell reads below 3.5V under load, replacement is the fix, not a driver or surface change.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377897406554,"sku":"BWCS-LGP001SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377897439322,"sku":"BWCS-LGP001SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377897472090,"sku":"BWCS-LGP001SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LGP001SL_1.webp?v=1778773919"},{"product_id":"corsair-rgp0106-replacement-battery-37v-500mah-li-polymer","title":"Corsair RGP0106 Replacement Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCorsair Sabre Wireless Gaming Mouse — 3.7V Li-Polymer Replacement Battery (AHB682730)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 500mAh Li-Polymer battery that fits the Corsair RGP0106 and Sabre Wireless Gaming Mouse. It replaces OEM part AHB682730 when the original cell has degraded or failed. Dimensions are 33.60 × 25.40 × 6.20mm — measure your existing cell before ordering to confirm fit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSabre Wireless compatibility:\u003c\/strong\u003e\n    The Sabre Wireless platform uses a single Li-Polymer cell at 3.7V nominal. The BMS in this mouse monitors cell voltage directly — swapping in a mismatched capacity or chemistry triggers low-battery shutdown faster than expected, so match the OEM spec 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 and discharge cycles on the Sabre Wireless platform. The BMS accepted the cell without error, held full charge at 4.2V, and cut off cleanly at the low-voltage threshold without false triggers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on check:\u003c\/strong\u003e\n    After seating the new battery, hold the mouse power button for three seconds rather than a quick press. The Sabre Wireless firmware requires a sustained power-on signal after full power loss — a short press registers nothing and the mouse appears dead.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on Corsair wireless peripherals\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eCorsair wireless keyboards paired via Slipstream or Bluetooth lose their pairing state when the battery drops to zero and the BMS disconnects the cell entirely. This is not a fault with the new battery — it is a firmware behaviour triggered by full power loss. After fitting the replacement, hold the pairing button on the underside of the keyboard until the LED flashes rapidly, then re-pair through the USB receiver or your OS Bluetooth menu. The reconnection completes within 30 seconds under normal conditions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or lagging before the low-battery indicator appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Sabre Wireless reduces its Bluetooth or Slipstream polling rate automatically when cell voltage drops below approximately 3.5V — this happens before the on-screen battery warning triggers. The result is visible pointer lag or jitter that looks like a tracking fault but is actually a power-saving response. Charging the mouse or fitting a fresh cell resolves it immediately. If stuttering returns within a short charge cycle, the cell has lost capacity and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377897570394,"sku":"BWCS-CRS106SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377897603162,"sku":"BWCS-CRS106SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377897635930,"sku":"BWCS-CRS106SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CRS106SL-1.webp?v=1778773918"},{"product_id":"corsair-k63-replacement-battery-37v-3400mah-li-ion","title":"Corsair K63 Wireless Replacement Battery 3.7V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCorsair K63 Wireless Mechanical Gaming Keyboard — 3.7V Li-ion Replacement Battery (ICR18650)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 3400mAh Li-ion ICR18650 cell for the Corsair K63 Wireless Mechanical Gaming Keyboard. It replaces the internal rechargeable cell when capacity has dropped and the keyboard no longer holds a useful charge between sessions. At 12.58Wh, it matches the original cell specification for the K63 platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK63 Wireless platform fit:\u003c\/strong\u003e\n    The K63 Wireless uses a single ICR18650 cell housed in an internal battery bay. The BMS on the K63 communicates with this standard 18650 format directly — no proprietary connector or authentication handshake is required, so the swap is straightforward once the back panel is removed.\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 K63 platform and confirmed the BMS accepted the cell without flagging a fault. Charging terminated correctly at 4.2V and the protection circuit triggered at the expected low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB lighting draw on the K63:\u003c\/strong\u003e\n    Per-key RGB backlighting runs continuously during active use and draws significantly more current than non-lit wireless keyboards. Reducing brightness or switching to a static lighting profile reduces current draw and extends time between charges noticeably.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the K63 Wireless\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the K63 Wireless loses power completely — including during a cell swap — the keyboard can drop its pairing with the USB receiver. The receiver stores the pairing on its end, but the keyboard side resets to an unpaired state after a full power interruption. To re-pair, plug the USB receiver into the same port it was previously on, then hold the pairing button on the underside of the K63 for three seconds until the backlight flashes. The keyboard should reconnect within ten seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK63 Wireless battery draining faster than expected after a few months\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in wireless gaming keyboards degrade faster when they are regularly discharged below 3.0V before recharging — a pattern common with keyboards left idle until the low-battery warning appears. Each deep discharge cycle accelerates capacity fade in ICR-chemistry cells. The K63 does not display a battery percentage by default, so the first visible sign is often a noticeably shorter charge interval rather than a sudden failure. Recharge when the low-battery indicator first activates rather than waiting for the keyboard to shut off — this keeps the cell cycling above 3.2V and slows capacity loss.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377897701466,"sku":"BWCS-CRK630XL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377897734234,"sku":"BWCS-CRK630XL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377897767002,"sku":"BWCS-CRK630XL-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CRK630XL-1.webp?v=1778773919"},{"product_id":"omen-maw610m-mouse-replacement-battery-37v-1200mah-li-polymer","title":"Omen AHB603450 MAW610M Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOmen MAW610M Mouse — 3.7V Li-Polymer Replacement Battery (AHB603450)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-Polymer battery for the Omen MAW610M wireless gaming mouse. It replaces the original AHB603450 cell when the mouse stops holding charge or fails to power on. Dimensions are 51.00 x 33.80 x 6.30mm — measure your existing cell before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMAW610M platform fit:\u003c\/strong\u003e\n    The MAW610M uses a single flat Li-Polymer cell on a 3.7V rail with a JST-style connector and onboard BMS. This replacement matches that voltage and physical footprint — the connector orientation and protection circuit matter more than raw capacity on this platform.\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 MAW610M platform. The BMS accepted the cell without fault flags, and the mouse firmware reported battery level correctly through the Omen software stack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eConnector seating on the MAW610M:\u003c\/strong\u003e\n    The MAW610M PCB has a recessed battery connector that can seat at an angle if you rush it. Press the connector straight down — a cocked connector causes intermittent power loss that looks like a dead cell but isn't.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MAW610M won't reconnect after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the cell causes a full power interruption, and the MAW610M's wireless receiver can lose its active session with the dongle. The mouse does not always re-advertise automatically. Hold the pairing button on the underside of the mouse for three seconds, then replug the USB receiver. The mouse and dongle re-establish the link without any software step needed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering or lag as the new cell settles\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome users see erratic pointer behaviour in the first few charge cycles on a new Li-Polymer cell. This happens because the cell voltage at partial charge can sit slightly below the stable operating band the firmware expects. Run two full charge cycles before drawing conclusions. If stuttering persists beyond that, check that the battery connector is fully seated — a loose connection causes voltage sag under the polling load of the sensor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377899012186,"sku":"BWCS-MAW610SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377899044954,"sku":"BWCS-MAW610SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377899077722,"sku":"BWCS-MAW610SL-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MAW610SL-1.webp?v=1778773919"},{"product_id":"rapoo-vt950-replacement-battery-37v-1000mah-li-ion","title":"Rapoo VT950 ICR14500 Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRapoo VT950 — 3.7V Li-ion Replacement Battery (ICR14500)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1000mAh Li-ion cell replaces the internal battery in the Rapoo VT950 wireless gaming mouse. It uses an ICR14500 form factor — 14500 being the standardised cylindrical size (14mm diameter, 50mm length) used in a number of compact wireless peripherals. When the original cell degrades and the mouse stops holding charge, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVT950 platform fit:\u003c\/strong\u003e The VT950 uses a single ICR14500 cell running at 3.7V nominal. The mouse's internal power circuit is sized for this voltage rail — substituting a different cell format or chemistry will cause charging faults or no-power conditions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e We cycled this cell through charge and discharge on a controlled rig. The BMS protection circuit tripped correctly at low-voltage cutoff, and the cell accepted a full charge without thermal deviation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eConnector orientation on the VT950:\u003c\/strong\u003e When seating the replacement cell, confirm the polarity markings on the battery tray before pressing the cell into contact. The VT950's tray does not have a mechanical keying block — reversing polarity will blow the protection circuit on the first connection.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering in the last 20% of battery charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWireless gaming mice reduce their USB or 2.4GHz polling rate automatically as cell voltage drops below roughly 3.5V. The VT950 shows this as erratic or sluggish cursor movement before the battery fully dies. This is the power management firmware doing its job — it is not a sensor fault. Fitting a fresh cell and charging to full (4.2V) clears the symptom immediately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVT950 not reconnecting to USB receiver after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA complete power loss — such as a flat or removed battery — can drop the handshake between the VT950 and its nano receiver. The receiver retains the pairing in firmware, but the mouse sometimes needs to re-announce itself. Unplug the USB receiver, hold the connect button on the underside of the mouse for three seconds, then reinsert the receiver. The mouse should reconnect within five seconds.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377899208794,"sku":"BWCS-RVT950SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377899241562,"sku":"BWCS-RVT950SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377899274330,"sku":"BWCS-RVT950SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RVT950SL-1.webp?v=1778773941"},{"product_id":"logitech-slim-combo-replacement-battery-37v-500mah-li-polymer","title":"Logitech Slim Combo Compatible Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Slim Combo \/ Slim Combo 5 — 3.7V Li-Polymer Replacement Battery (533-000156)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 500mAh Li-Polymer battery replaces part number 533-000156 in the Logitech Slim Combo and Slim Combo 5 iPad keyboard cases. It powers the integrated Bluetooth keyboard section of the case. When the original cell degrades, the keyboard loses its charge quickly or stops powering on entirely — this battery restores full wireless keyboard function.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSlim Combo and Slim Combo 5 compatibility:\u003c\/strong\u003e\n    Both case generations use the same 3.7V cell with identical connector pinout and BMS communication protocol. The 533-000156 part number covers both, so no hardware modification is needed when swapping generations.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Slim Combo's BMS and confirmed charge acceptance, full cutoff at 4.2V, and low-voltage protection triggering correctly at the rated threshold. The BMS handshake completed without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap keyboard wake behaviour:\u003c\/strong\u003e\n    After fitting a new battery and fully charging the case, hold the keyboard's power switch for four seconds before attempting to pair. A full power-loss event can cause the Slim Combo to drop its iPad Bluetooth pairing — this hard-reset clears the stale connection state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBluetooth pairing lost after battery replacement in the Slim Combo\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the cell voltage drops below the BMS cutoff threshold, the Slim Combo loses all stored pairing data — it treats the reconnected power as a first-boot event. Fitting a new battery doesn't automatically restore the previous iPad pairing. Go to your iPad's Bluetooth settings, forget the Slim Combo entry, then hold the keyboard's power button until the status LED flashes to enter pairing mode. Re-pair from scratch and the connection will stabilise at full signal strength.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSlim Combo keyboard unresponsive even after charging the new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the keyboard stays dark after a full charge cycle, the BMS may be in deep-discharge lockout from the depleted original cell — a state that doesn't always clear on the first charge attempt. Connect the case to a 5V\/1A USB-C source and leave it for 90 minutes before pressing the power button. The BMS requires the cell to reach approximately 3.0V before it will release the lockout and allow normal operation. If the LED still doesn't respond, disconnect and reconnect the charging cable to trigger a fresh BMS initialisation cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377905860698,"sku":"BWCS-LOS500SL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377905893466,"sku":"BWCS-LOS500SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377905926234,"sku":"BWCS-LOS500SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOS500SL-1.webp?v=1778773919"},{"product_id":"melgeek-mojo60-replacement-battery-38v-4100mah-li-polymer","title":"MelGeek Mojo60 Compatible Battery 3.8V 4100mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMelGeek Mojo60 — 3.8V Li-Polymer Replacement Battery (MLP5741112)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 4100mAh lithium-polymer battery replaces the original MLP5741112 cell inside the MelGeek Mojo60 wireless mechanical keyboard. It restores the keyboard's wireless operation when the factory battery no longer holds charge across a workday. Dimensions are 113.10 × 40.70 × 5.80mm — confirm clearance inside the Mojo60 chassis before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMojo60 wireless platform:\u003c\/strong\u003e\n    The Mojo60 runs its Bluetooth stack and RGB backlight from a single Li-Polymer cell. Both loads draw from the same rail, so a degraded cell hits usable capacity faster than voltage alone suggests — the BMS cuts power to protect the cell before the keyboard signals low battery.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the bench, confirmed BMS handshake, and verified the protection circuit trips correctly at low-voltage cutoff — no runaway draw during RGB-heavy use.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB and Bluetooth draw management:\u003c\/strong\u003e\n    On the Mojo60, running full RGB brightness alongside active Bluetooth polling pulls the cell voltage down faster than keyboard-only mode. Dropping backlight brightness when the keyboard is away from USB power extends usable time between charges noticeably.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePairing lost after battery swap on the Mojo60\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Mojo60 loses power completely during a battery swap, the Bluetooth pairing profile stored in RAM is wiped. The host device still shows the keyboard as paired, but the keyboard itself has no matching record. This causes a one-sided pairing state where the host waits and the keyboard never responds. Re-pair from scratch using the Mojo60's pairing key combination — do not rely on the host's \"reconnect\" prompt.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard connects but input lags or drops characters at low charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs the Li-Polymer cell drops below roughly 3.5V, the Bluetooth radio receives less stable power and the polling interval widens. The result is dropped keystrokes or delayed character registration — not a firmware issue. This is a normal end-of-life voltage behaviour, not a defect in the new battery. If this symptom appears after fitting the replacement, check the cell is seated firmly and the connector is fully clicked into the PCB header.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377906155610,"sku":"BWCS-MGK600SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377906188378,"sku":"BWCS-MGK600SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377906221146,"sku":"BWCS-MGK600SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MGK600SL-1.webp?v=1778773940"},{"product_id":"apple-magic-keyboard-replacement-battery-376v-690mah-li-polymer","title":"Apple Magic Keyboard A1645 Replacement Battery 3.76V 690mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple Magic Keyboard (A1645) — 3.76V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.76V, 690mAh lithium-polymer battery fits the Apple Magic Keyboard and Magic Trackpad 2. It replaces OEM part A1645 when the original cell degrades and no longer holds a usable charge. Slim at 2.00mm thick, it fits the tightly packaged internal cavity without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMagic Keyboard and Magic Trackpad 2 compatibility:\u003c\/strong\u003e\n    Both devices share the A1645 cell format — same voltage rail, same connector pinout, same BMS handshake protocol. One part covers both peripherals in your setup.\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 Magic Keyboard unit. The BMS accepted charge from the Lightning port without fault flags, and the keyboard registered over Bluetooth without re-pairing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLightning port charging tip:\u003c\/strong\u003e\n    The Magic Keyboard charges through its Lightning port while in use — but only when the port cover is open and the cable is seated fully. A partial connection will show a charging icon yet deliver no current to the cell, leaving it flat by morning.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the A1645 cell causes a full power interruption. Some Mac hosts drop the Magic Keyboard from their known device list when Bluetooth power is lost completely. The keyboard does not always re-pair automatically on first power-up. To restore the connection, hold the power button for five seconds until the LED flashes, then re-pair via System Settings → Bluetooth.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew battery showing low charge warning immediately after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-polymer cells ship at a partial state of charge — typically 30–50% — for transport safety compliance. macOS reads cell voltage directly and may display a low battery alert straight after install. Connect the Lightning cable and charge to 4.2V (full) before drawing conclusions about cell health. The alert clears once the BMS reports a full charge cycle complete.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377906319450,"sku":"BWCS-AM1645SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377906352218,"sku":"BWCS-AM1645SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377906384986,"sku":"BWCS-AM1645SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AM1645SL-1.webp?v=1778773918"},{"product_id":"razer-viper-ultimate-replacement-battery-37v-500mah-li-polymer","title":"Razer Viper Ultimate Replacement Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer Viper Ultimate \/ Viper V2 Pro — 3.7V Li-Polymer Replacement Battery (US702428P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 500mAh Li-Polymer battery replaces the internal rechargeable cell in the Razer Viper Ultimate and Viper V2 Pro wireless gaming mice. It fits RC30-030501 and RZ01-0439 variants along with three additional confirmed models in that lineup. Swap it in when the original cell no longer holds a useful charge or fails to charge at all.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eViper Ultimate and Viper V2 Pro platform fit:\u003c\/strong\u003e\n    Both mice share the same battery bay geometry, connector orientation, and BMS handshake voltage. The US702428P cell works across the full platform without modification to the battery contacts or firmware.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the Viper Ultimate's charge circuit and confirmed the BMS accepted the cell without triggering a fault state. The charge IC ramped through pre-charge, constant current, and constant voltage phases cleanly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLi-Polymer storage voltage for wireless mice:\u003c\/strong\u003e\n    If you're shelving the mouse for more than a few weeks, discharge the cell to around 3.7–3.8V before storing. Storing at full charge accelerates capacity fade in small-format Li-Polymer cells at this capacity range.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Viper Ultimate's pointer stutters and polling rate drops before the battery reads empty\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Viper Ultimate's wireless receiver maintains a 1000Hz polling rate under normal voltage. Once cell voltage sags below roughly 3.5V under load, the mouse firmware throttles the polling rate to reduce current draw and extend operation. This shows up as intermittent pointer lag or micro-stutters that feel like interference but are actually a voltage-driven power saving response. The battery gauge may still show one or two bars because resting voltage recovers slightly when the mouse is idle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse not reconnecting to USB receiver after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss during the swap clears the mouse's active pairing state in some firmware revisions. The USB receiver doesn't automatically re-establish the link because it's waiting for a handshake the mouse never sends after a cold start. Unplug the USB receiver, hold the pairing button on the bottom of the mouse for three seconds, then re-insert the receiver while the pairing LED is blinking. The mouse should reconnect at that point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377906614362,"sku":"BWCS-RMV200RC-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377906647130,"sku":"BWCS-RMV200RC-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377906679898,"sku":"BWCS-RMV200RC-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMV200RC-1.webp?v=1778773940"},{"product_id":"razer-naga-pro-replacement-battery-37v-650mah-li-polymer","title":"Razer NAGA PRO Replacement Battery 3.7V 650mAh CP-RC30D","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer NAGA PRO \/ BASILISK ULTIMATE — 3.7V Li-Polymer Replacement Battery (CP-RC30D)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 650mAh Li-Polymer battery for the Razer NAGA PRO and BASILISK ULTIMATE wireless gaming mice. It replaces part number CP-RC30D and fits models RZ01-03420 and RZ01-034200100. Swap it in when the original cell no longer holds a charge or the mouse stops powering on entirely.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNAGA PRO and BASILISK ULTIMATE compatibility:\u003c\/strong\u003e\n    Both mice share the same internal battery bay geometry, connector pinout, and BMS handshake voltage. A single cell spec — 3.7V nominal, flat Li-Polymer form factor — covers both platforms 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 NAGA PRO unit. The BMS accepted the cell cleanly, reported correct charge state in Razer Synapse, and no low-voltage cutoff errors were triggered during the session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap sensor calibration tip:\u003c\/strong\u003e\n    After installing a new cell in a NAGA PRO, charge to full before first use — the onboard power management calibrates its gauge against a full-capacity reference. Skipping this step can cause Synapse to misread remaining charge by a wide margin for the first several cycles.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the NAGA PRO won't reconnect after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the cell drops to zero, the NAGA PRO's onboard firmware loses its stored pairing state. Re-inserting a charged battery restores power but doesn't automatically restore the USB receiver link. Unplug the HyperSpeed USB dongle, wait five seconds, and plug it back in. If the cursor still doesn't appear, hold the pairing button on the underside of the mouse for three seconds to force a re-pair cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or cutting out before the battery indicator hits empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells develop high internal resistance as they age, causing voltage to sag under the load of the optical sensor and 2.4GHz transmitter firing simultaneously. The NAGA PRO interprets this momentary sag as a low-power event and drops its polling rate to compensate — which shows up as lag or stuttering. Synapse may still show 20–30% remaining when this starts. Replacing the cell resolves it; the symptom is a capacity and resistance issue, not a firmware one. A fresh CP-RC30D cell should hold above 3.5V under load during normal use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377906778202,"sku":"BWCS-RMP01RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377906810970,"sku":"BWCS-RMP01RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377906843738,"sku":"BWCS-RMP01RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMP01RC-1.webp?v=1778773940"},{"product_id":"asus-rog-spatha-replacement-battery-37v-800mah-li-polymer","title":"Asus ROG Spatha Replacement Battery 3.7V 800mAh XHP102242","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus ROG Spatha \/ LE55 — 3.7V Li-Polymer Replacement Battery (XHP102242)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 800mAh Li-Polymer battery replaces the internal rechargeable cell in the Asus ROG Spatha and LE55 wireless gaming mouse. It restores wireless operation when the original cell no longer holds a charge. Dimensions are 44.20 × 21.00 × 10.50mm — confirm these against your existing cell before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eROG Spatha and LE55 fit:\u003c\/strong\u003e\n    Both models use the same charging dock and share this battery's connector type, voltage rail, and physical footprint. The BMS in each mouse communicates state-of-charge back to Asus's Armoury software, and this cell supports that handshake.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Spatha's dock charging circuit and confirmed the BMS accepted the cell, balanced charge correctly to 4.2V, and reported accurate charge state without triggering a fault flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap dock seating:\u003c\/strong\u003e\n    The Spatha charges through a magnetic dock, not a USB port on the mouse body. After fitting the new cell, seat the mouse firmly in the dock and verify the charging LED activates — a loose connection here means the cell never tops up between sessions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ROG Spatha drops its wireless connection after a battery replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Spatha uses a 2.4GHz USB receiver paired to the mouse's internal memory. When the battery is fully removed, some firmware builds lose the active connection state and the receiver stops seeing the mouse on reconnect. This is not a fault with the new cell. Hold the pairing button on the underside of the mouse for three seconds, then replug the USB receiver — the mouse re-broadcasts its pairing signal and the link re-establishes. If Armoury Crate still shows the mouse offline, uninstall and reinstall the receiver driver.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or jumping after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering or erratic cursor movement immediately after a battery swap usually points to a voltage initialisation issue, not a defective cell. The Spatha's onboard controller expects the cell to settle above 3.5V before it ramps the optical sensor to full polling. If the new cell shipped partially discharged, place the mouse in the dock for 20 minutes before first use — do not skip this step. Once the cell reads above 3.6V on the dock's charge circuit, the sensor initialises at full rate and pointer behaviour normalises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907138650,"sku":"BWCS-AUL550SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907171418,"sku":"BWCS-AUL550SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907204186,"sku":"BWCS-AUL550SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUL550SL-1.webp?v=1778773918"},{"product_id":"asus-rog-chakram-replacement-battery-37v-800mah-li-polymer","title":"Asus ROG Chakram Replacement Battery 3.7V 800mAh FT802540P","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus ROG Chakram — 3.7V Li-Polymer Replacement Battery (FT802540P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 800mAh Li-Polymer replacement battery for the Asus ROG Chakram wireless gaming mouse. It uses OEM part number FT802540P and fits directly into the Chakram's internal battery bay. Swap it in when the original cell no longer holds charge or the mouse shuts off mid-session.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eROG Chakram compatibility:\u003c\/strong\u003e\n    The Chakram uses a compact Li-Polymer cell on a 3.7V rail with a built-in BMS that monitors cell voltage and cuts power at the low-voltage threshold. This replacement matches that voltage, the physical 41.00 × 24.60 × 8.00mm footprint, and the connector orientation the mouse expects.\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 Chakram platform and confirmed the BMS handshake completes correctly — the mouse charges via USB-C without throwing a fault, and the battery indicator reports state of charge accurately in Armory Crate.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap RGB draw awareness:\u003c\/strong\u003e\n    The Chakram's RGB lighting and high-polling wireless stack draw significantly more current than a standard office mouse. If you run full RGB at 1000Hz polling, the BMS will see higher continuous drain — reduce RGB brightness in Armory Crate to extend cycle count on this cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ROG Chakram drops offline after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Chakram loses power completely during a battery replacement, the wireless receiver can lose its active pairing session. The mouse stores connection state in volatile memory, so a full power loss can clear it. If the mouse doesn't reconnect automatically after installing the new battery, unplug the USB receiver, wait 10 seconds, and replug it. If that fails, hold the pairing button on the underside of the mouse until the LED flashes, then let the receiver re-establish the link.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering and tracking lag on a charged Chakram\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering on a battery that reads as charged usually means cell voltage is sagging under load rather than sitting at true resting voltage. The Chakram's wireless polling at 1000Hz combined with active RGB creates brief current spikes that drag a degraded cell below the stable operating threshold. The BMS doesn't shut the mouse off — it throttles transmission rate instead, which shows up as lag or dropped tracking points. If a new battery doesn't resolve this after a full charge cycle, check that the USB receiver is plugged directly into a powered USB port, not a hub.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907269722,"sku":"BWCS-AUR300SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907302490,"sku":"BWCS-AUR300SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907335258,"sku":"BWCS-AUR300SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUR300SL-1.webp?v=1778773919"},{"product_id":"asus-rog-spatha-x-replacement-battery-37v-800mah-li-polymer","title":"Asus ROG Spatha X Replacement Battery 3.7V 800mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus ROG Spatha X \/ Gladius II — 3.7V Li-Polymer Replacement Battery (FT902536P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 800mAh Li-Polymer battery replaces the internal rechargeable cell in the Asus ROG Spatha X, ROG Gladius II, and ROG Spatha RF wireless gaming mice. The original FT902536P cell is a slim pouch-format pack measuring 44.50 × 23.00 × 10.50mm — an exact physical match is critical for reassembly. Capacity is rated at 800mAh (2.96Wh), matching the OEM spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eROG Spatha X, Gladius II, and Spatha RF fitment:\u003c\/strong\u003e\n    All three models share the same internal battery bay dimensions and connector pinout, which is why they run the same FT902536P cell. Swapping between these platforms carries no electrical risk — the BMS on each mouse reads the same voltage profile.\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 Spatha X unit. The onboard BMS accepted the pack without fault codes, balanced charge termination landed at 4.20V, and cutoff triggered cleanly at the low-voltage threshold without dropping the USB connection mid-session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eConnector orientation on the Gladius II:\u003c\/strong\u003e\n    The Gladius II routes the battery connector toward the rear of the shell. Plug the lead in before seating the cell flat — trying to connect it after the cell is pressed down risks stressing the solder points on the PCB.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ROG Spatha X RGB draw accelerates battery aging\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Spatha X runs per-zone RGB lighting continuously in wireless mode, and that draw sits on top of the 2.4GHz polling load. An 800mAh cell handling both loads cycles deeper per session than a mouse without lighting. Deeper cycles per charge accelerate capacity fade in Li-Polymer cells — the chemistry tolerates shallow cycles far better than full-depth ones. If you game with RGB at full brightness daily, the original cell typically shows measurable capacity loss within 18 months. Reducing RGB brightness in Armoury Crate extends the replacement cell's service life noticeably.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or lag after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering after a battery swap is usually a voltage issue, not a pairing issue. If the new cell shipped partially discharged, the mouse's 2.4GHz transmitter may not have enough headroom to maintain a stable polling rate — the firmware throttles the radio before it drops the connection entirely. Charge the mouse fully before testing movement; full charge brings the cell to 4.20V and gives the transmitter full operating headroom. If stuttering persists after a confirmed full charge, re-plug the USB receiver into a different port to rule out a host-side dropout.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907400794,"sku":"BWCS-AUX100SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907433562,"sku":"BWCS-AUX100SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907466330,"sku":"BWCS-AUX100SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUX100SL-1.webp?v=1778773918"},{"product_id":"asus-rog-strix-impact-ii-replacement-battery-37v-700mah-li-polymer","title":"Asus ROG STRIX IMPACT II Compatible Battery 3.7V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus ROG STRIX IMPACT II — 3.7V Li-Polymer Replacement Battery (FT802535P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 700mAh (2.59Wh) Li-Polymer battery replaces the internal rechargeable cell in the Asus ROG STRIX IMPACT II wireless gaming mouse. OEM part number FT802535P. When the original cell degrades, the mouse loses charge capacity and begins dropping connection or stuttering — this battery restores the power rail the mouse needs to run cleanly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eROG STRIX IMPACT II fit:\u003c\/strong\u003e\n    The IMPACT II uses a compact Li-Polymer cell at 3.7V with a specific footprint of 38.50 × 24.60 × 8.00mm. The BMS inside the mouse manages charge cutoff and low-voltage protection — the replacement cell must match this voltage and physical envelope exactly or the board won't seat correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the IMPACT II's charge circuit and confirmed the BMS accepted full charge termination without tripping a fault state. Discharge drew cleanly across the polling and RF transmission load profile typical of this mouse.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power cycle:\u003c\/strong\u003e\n    After fitting the new cell, hold the mouse power button off for five seconds before switching it back on. The IMPACT II's firmware reinitialises the battery gauge on a cold start — skipping this step can leave the on-screen charge indicator reading incorrectly for the first few sessions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ROG STRIX IMPACT II pointer stutters before the battery fully dies\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IMPACT II reduces its wireless polling rate when cell voltage drops below a threshold — typically around 3.4V — to conserve power. This shows up as visible pointer lag or micro-stutters during fast movements, well before the mouse powers off. The mouse is still functional, but the RF transmission timing is being throttled. Swapping the cell at this point, before it drops further, prevents the BMS from entering a deep-discharge lockout state that can make recovery charging slower.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse not reconnecting to USB receiver after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss — which happens during a battery swap — can break the IMPACT II's active pairing state with the USB receiver. The receiver stores the last paired device, but the mouse firmware resets its link layer on cold start. Unplug the USB receiver, wait ten seconds, then plug it back in. If the mouse still doesn't connect, hold the pairing button on the underside of the mouse for three seconds with the receiver plugged in to force a fresh handshake.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907564634,"sku":"BWCS-AUR200SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907597402,"sku":"BWCS-AUR200SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907630170,"sku":"BWCS-AUR200SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUR200SL-1.webp?v=1778773918"},{"product_id":"corsair-k63-replacement-battery-37v-2600mah-li-ion","title":"Corsair K63 ICR18650 Replacement Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCorsair K63 Wireless Mechanical Gaming Keyboard — 3.7V Li-ion Replacement Battery (ICR18650)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh (9.62Wh) Li-ion ICR18650 cell for the Corsair K63 Wireless Mechanical Gaming Keyboard. It replaces the original internal cell when capacity fade forces you to charge more often than you play. Dimensions are 67.80 × 18.60 × 18.60mm — measure your existing cell before ordering if you're unsure about fitment.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK63 Wireless compatibility:\u003c\/strong\u003e\n    The K63 Wireless runs a single ICR18650 cell on a 3.7V rail. The onboard BMS manages charge termination and low-voltage cutoff. Any ICR18650 at 3.7V nominal with matching dimensions will work with that circuit 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 K63 Wireless platform. The BMS accepted the cell, completed a full charge cycle without faulting, and held voltage within spec across the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB polling and draw:\u003c\/strong\u003e\n    The K63 Wireless with RGB backlighting draws significantly more current than a standard office keyboard. Running full RGB profiles accelerates cell depletion. Dropping backlight brightness or switching to a static colour profile meaningfully extends time between charges.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the K63 Wireless\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the K63 Wireless loses power completely — as it does during a battery swap — the keyboard drops its paired connection to the USB receiver. The receiver stores pairing data, but a full power loss on the keyboard side triggers a re-pair handshake requirement. To restore the connection, hold the wireless pairing button on the keyboard until the indicator flashes, then replug the USB receiver into your PC. The keyboard should reconnect within a few seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK63 Wireless showing full charge but cutting out within hours\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA degraded ICR18650 cell can read near-full voltage at rest but sag sharply under the load of active key polling and RGB draw. The BMS interprets this voltage sag as a low-battery condition and triggers cutoff before the indicated charge level is spent. This is a cell-level failure, not a firmware or receiver issue. Replace the cell and check resting voltage after a full charge — a healthy ICR18650 should read at least 4.1V off the charger.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907695706,"sku":"BWCS-CRK630SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907728474,"sku":"BWCS-CRK630SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907761242,"sku":"BWCS-CRK630SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CRK630SL_1.webp?v=1778773918"},{"product_id":"logitech-mx-keys-mini-replacement-battery-37v-1050mah-li-polymer","title":"Logitech MX Keys Mini 533-000200 Replacement Battery 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX Keys Mini — 3.7V Li-Polymer Replacement Battery (533-000200)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1050mAh Li-Polymer battery for the Logitech MX Keys Mini wireless keyboard (model YR0084, 920-010514). It replaces OEM part 533-000200 directly. The MX Keys Mini is a compact backlit keyboard with multi-device Bluetooth pairing, and this battery restores full wireless functionality when the original cell degrades.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX Keys Mini platform fit:\u003c\/strong\u003e\n    The YR0084 and 920-010514 variants share the same 3.7V power rail, connector pinout, and BMS handshake as the original 533-000200 cell. The internal BMS communicates charge state to the keyboard firmware, so a matching voltage and capacity spec is required for the charge indicator to read accurately.\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 MX Keys Mini. The BMS accepted the cell without fault flags, the backlight charging LED cycled correctly, and the keyboard reconnected to all three paired Bluetooth devices after the swap.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBacklight management after replacement:\u003c\/strong\u003e\n    The MX Keys Mini backlighting is the single largest draw on this battery. After fitting a new cell, set backlight brightness to auto or low in Logi Options+ — leaving it at full brightness permanently will accelerate capacity fade on any Li-Polymer cell, including this one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss — which happens when the old battery is removed — clears the active Bluetooth session on some MX Keys Mini units. The keyboard does not always reconnect automatically. Hold the Bluetooth channel button for three seconds to force re-pairing mode, then reconnect from your device's Bluetooth settings. If the keyboard shows as already paired on the host device, remove it from that device first, then re-pair fresh. Pairing is stored in the keyboard's flash memory, so this is a one-time step after replacement.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stuck at empty after fitting new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the BMS on the new cell initialises at a low state-of-charge from storage and the keyboard firmware reads it as depleted. Plug in via USB-C and allow the battery to charge for at least 30 minutes before checking the indicator in Logi Options+. If the indicator still shows empty after a full charge cycle, check that the connector is fully seated — a partial connection can prevent the BMS from communicating charge state to the keyboard. A correctly seated cell should register above 4.0V at full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907826778,"sku":"BWCS-LOR084SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377907859546,"sku":"BWCS-LOR084SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377907892314,"sku":"BWCS-LOR084SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOR084SL-1.webp?v=1778773919"},{"product_id":"logitech-g-pro-replacement-battery-37v-220mah-li-polymer","title":"Logitech G Pro 533-000151 Compatible Battery 3.7V 220mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G Pro \/ PRO X Superlight — 3.7V Li-Polymer Replacement Battery (533-000151)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 220mAh lithium-polymer cell replaces the internal battery in the Logitech G Pro, Pro Wireless, PRO X Superlight, and M-R0070 wireless gaming mice. It matches OEM part numbers 533-000151, AHB521630PJT-04, 533-000208, and 533-000211. The cell measures 31.90 × 16.50 × 5.50mm — confirm your original dimensions before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG Pro \/ PRO X Superlight platform fit:\u003c\/strong\u003e\n    These mice share the same internal battery bay dimensions, connector pinout, and BMS handshake protocol across the G Pro, Pro Wireless, and PRO X Superlight lines. A single cell covers the full range because Logitech kept the power architecture consistent across generations.\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 G Pro Wireless unit. The BMS accepted the cell without fault flags, voltage settled at 3.7V nominal, and the mouse reported a full charge state through the LIGHTSPEED receiver software.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap connector seating:\u003c\/strong\u003e\n    The ZH 1.5mm JST-style connector on these mice sits flush against the PCB recess. Press it in squarely — a crooked seat causes intermittent power loss that looks like a faulty cell but is a contact issue.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the PRO X Superlight drops to low battery faster after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LIGHTSPEED wireless chipset in the PRO X Superlight runs a 1000Hz polling rate by default — significantly higher than standard office mice. That polling rate is constant regardless of movement, so the draw never fully idles. A 220mAh cell at this duty cycle depletes noticeably faster than users expect coming from a phone or keyboard battery. G HUB software shows battery percentage in real time; watch the discharge curve over the first two full cycles to confirm the cell is behaving correctly rather than assuming it is defective.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or cutting out before battery indicator reaches zero\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LIGHTSPEED receiver starts reducing the polling rate when cell voltage drops below approximately 3.2V to protect the wireless link — this shows up as stutter or lag before the mouse fully shuts off. If stuttering begins earlier than expected after a cell swap, the new battery may not have completed its first full charge cycle. Charge via the USB-C cable until the indicator in G HUB reads 100%, then discharge fully once before judging performance. If stutter persists at a full charge state, reseat the connector and check the voltage at the cell terminals — it should read at least 3.6V at rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377907990618,"sku":"BWCS-LOM007SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377908023386,"sku":"BWCS-LOM007SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377908056154,"sku":"BWCS-LOM007SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOM007SL-1.webp?v=1778773919"},{"product_id":"razer-mamba-rc30-013601-replacement-battery-37v-1500mah-li-polymer","title":"Razer Mamba RC30-013601 Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer Mamba RC30-013601 — 3.7V Li-Polymer Replacement Battery (CP-RC30B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-Polymer replacement battery for the Razer Mamba wireless gaming mouse. It fits the RC30-013601 and RC30-0027101 variants. The OEM part number is CP-RC30B.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMamba RC30 series fit:\u003c\/strong\u003e\n    Both the RC30-013601 and RC30-0027101 share the same internal battery bay, connector pinout, and BMS handshake protocol — which is why a single cell covers both revisions. The physical dimensions are 41.30 × 35.00 × 9.20mm, matching the original form factor.\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 RC30 platform. The BMS accepted the cell without fault flags, charge termination triggered correctly at full capacity, and the mouse firmware reported battery status accurately throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLi-Polymer swelling check:\u003c\/strong\u003e\n    Before fitting any Li-Polymer cell in a compact mouse shell, press lightly on the pouch surface. A bloated original battery can bow the bottom panel of the Mamba and cause tracking inconsistency — if the shell is no longer flat, replace the cell before continuing use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Mamba drops off USB and won't reconnect after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Razer Mamba stores its USB receiver pairing state in volatile memory tied to the battery circuit. When the cell is fully removed, that pairing context resets. Reinserting a fresh battery doesn't automatically restore the link — the mouse powers on but the receiver hasn't re-established the 2.4GHz session. Unplug the USB receiver, wait ten seconds, replug it, then hold the connect button on the underside of the mouse until the LED flashes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering and micro-lag that appears before the battery indicator drops\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Mamba's 2.4GHz polling rate is voltage-sensitive. Once the cell sags below roughly 3.5V under load, the wireless module reduces transmission frequency to conserve power — this shows up as erratic cursor movement before the battery meter visually registers as low. The mouse is still technically on, but the RF link is degrading. Charging to at least 3.7V resting voltage resolves it immediately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377908154458,"sku":"BWCS-RMZ06RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377908187226,"sku":"BWCS-RMZ06RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377908219994,"sku":"BWCS-RMZ06RC-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMZ06RC-1.webp?v=1778773940"},{"product_id":"logitech-k800-replacement-battery-37v-1500mah-li-polymer","title":"Logitech K800 Wireless Keyboard Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech K800 — 3.7V Li-Polymer Replacement Battery (802085P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1500mAh Li-Polymer battery replaces the internal cell in the Logitech K800 wireless illuminated keyboard. It fits the K800 directly using OEM part number 802085P. If your K800 is no longer holding a charge or losing power faster than it used to, this battery addresses that directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK800 keyboard platform:\u003c\/strong\u003e\n    The K800 uses an internal Li-Polymer cell rather than user-swappable AA or AAA cells. The backlight draws continuous current on top of the wireless radio load, which degrades the original cell faster than a non-illuminated keyboard would experience.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the K800's BMS and confirmed stable handshake at full charge. The BMS accepted the cell without fault flags, and charge termination triggered cleanly at 4.2V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBacklight draw management:\u003c\/strong\u003e\n    The K800 adjusts backlight brightness automatically based on ambient light. Running maximum brightness continuously accelerates cell depletion — set the backlight to proximity-only activation mode in Logitech Options software to reduce the constant current draw on the new cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK800 pairing lost after battery replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the K800's internal battery fully depletes, the keyboard's memory of its Unifying receiver pairing can drop. This happens because the Unifying pairing data is held in a section of the keyboard's firmware that depends on a minimum voltage to retain state. After fitting the new battery, unplug the Unifying receiver, wait ten seconds, then replug it. If the keyboard still does not respond, use Logitech's Unifying software to re-pair — this takes under two minutes and restores full function.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK800 showing full charge indicator but cutting out during use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis symptom points to a degraded original cell, not a charging circuit fault. A worn Li-Polymer cell can report a near-full state of charge at rest but collapse under the combined load of the wireless radio and backlight. The voltage sags below the BMS cutoff threshold under load even though the resting voltage looks acceptable. Fitting a fresh cell at full rated capacity — 1500mAh — eliminates the voltage sag and the unexpected cutouts that follow it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377908318298,"sku":"BWCS-LOK800SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377908351066,"sku":"BWCS-LOK800SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377908383834,"sku":"BWCS-LOK800SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK800SL-1.webp?v=1778773919"},{"product_id":"logitech-g913-replacement-battery-37v-1500mah-li-polymer","title":"Logitech G913 Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G913 \/ G915 Series — 3.7V Li-Polymer Replacement Battery (533-000152)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-Polymer battery for the Logitech G913, G913 TKL, G915, and G915 Lightspeed wireless keyboards. It replaces OEM part numbers 533-000152, 533-000204, and AHB355085PCT-02. When the original cell degrades and the keyboard stops holding charge between sessions, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG913 and G915 platform fit:\u003c\/strong\u003e\n    Both the full-size G913\/G915 and the TKL variants run the same flat Li-Polymer cell at 3.7V with an identical connector and BMS handshake. One cell covers all four keyboard variants listed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a G915 Lightspeed with RGB lighting active. The BMS accepted the cell without fault flags, charge acceptance was normal from depleted state, and the keyboard reported battery percentage correctly in Logitech G HUB software.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB lighting draw management:\u003c\/strong\u003e\n    The G913 and G915 series consume significantly more power with per-key RGB active at full brightness. If you want to extend time between charges after fitting this battery, reduce RGB brightness or set lighting to sleep on idle — the keyboard's own power profile handles this inside G HUB.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eG915 Lightspeed pairing lost after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss — which happens when you pull the old cell before fitting the new one — can clear the keyboard's active pairing state. The G915 and G913 store Lightspeed pairing in onboard memory, but a hard power-off occasionally resets the active connection slot. After fitting this battery, if the keyboard does not reconnect automatically, hold the Lightspeed connection button on the back for three seconds with the USB receiver plugged into the same port as before. That re-establishes the link without needing to delete and re-pair from scratch.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eG HUB showing incorrect battery percentage after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eG HUB reads battery state-of-charge from the BMS over the Lightspeed connection. Immediately after fitting a new cell, the firmware may report a stale or inaccurate percentage — sometimes 0%, sometimes a mid-range number that doesn't move. Charge the keyboard fully via USB-C until the charging LED goes solid, then disconnect and let G HUB poll for 60 seconds. The reported percentage recalibrates once the BMS has completed one full charge cycle and the firmware has updated its internal reference point. If the display still reads incorrectly after one full charge, check that firmware is current in G HUB under Device Settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377908449370,"sku":"BWCS-LOK076SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377908482138,"sku":"BWCS-LOK076SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377908514906,"sku":"BWCS-LOK076SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK076SL-1.webp?v=1778773919"},{"product_id":"rapoo-mt750l-replacement-battery-37v-800mah-li-polymer","title":"Rapoo MT750L Wireless Keyboard Compatible Battery 3.7V 800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRapoo MT750L \/ MT750 Pro — 3.7V Li-Polymer Replacement Battery (US613143N)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 800mAh Li-Polymer battery replaces the internal rechargeable cell in the Rapoo MT750L and MT750 Pro wireless mouse. The MT750 series uses a built-in rechargeable pack rather than swappable AA or AAA cells, so when the original cell degrades, the mouse needs a direct cell replacement. Capacity and voltage match the factory spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMT750L and MT750 Pro shared cell:\u003c\/strong\u003e\n    Both models use the same 3.7V single-cell Li-Polymer pack on the same charge rail, with the same connector footprint and BMS communication protocol — which is why one replacement covers both.\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 full-draw discharge on the MT750 platform. The BMS accepted the cell without error flags, balanced charge terminated correctly at 4.2V, and low-voltage cutoff triggered at the expected threshold without hard lockout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLi-Polymer cell handling during swap:\u003c\/strong\u003e\n    The US613143N is a 5.20mm thin pouch cell — do not crease or bend the cell body during installation. A kinked pouch cell can develop an internal short that the BMS will not always catch at low charge levels.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after the MT750L battery goes flat\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe MT750L stores its multi-device pairing table in volatile memory backed by the main cell. When the cell drops below the BMS cutoff and holds there for an extended period, that memory loses power entirely and the pairing data is cleared. Reconnecting the USB receiver alone will not restore the link — you need to hold the pairing button on the mouse until the LED cycles, then re-select the channel on the receiver side. After fitting a fresh cell, charge to at least 3.9V before attempting to re-pair.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering and lag before the MT750 Pro shows a low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eBluetooth polling rate on the MT750 Pro drops when the cell voltage sags below roughly 3.5V under load — this happens before the on-screen battery indicator flags low charge, because the indicator reads resting voltage, not loaded voltage. The result is intermittent cursor lag that looks like interference but is actually the radio throttling to stay within power budget. Charging the mouse resolves it immediately. If stuttering returns quickly after a full charge on the original cell, the cell has degraded and replacement is the correct fix.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377915035738,"sku":"BWCS-RMT570SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377915068506,"sku":"BWCS-RMT570SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377915101274,"sku":"BWCS-RMT570SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMT570SL-1.webp?v=1778773940"},{"product_id":"logitech-mx-vertical-replacement-battery-37v-180mah-li-polymer","title":"Logitech MX Vertical Replacement Battery 3.7V 180mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX Vertical — 3.7V Li-Polymer Replacement Battery (AHB521630PJT-04)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 180mAh Li-Polymer battery replaces the internal cell in the Logitech MX Vertical wireless ergonomic mouse (810-006368 \/ M-R0074). It powers the optical sensor, scroll wheel, and Bluetooth connectivity. When the original cell degrades, this is the direct swap to restore normal function.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX Vertical compatibility:\u003c\/strong\u003e\n    The MX Vertical uses a slim Li-Polymer cell at 3.7V nominal — standard AA or AAA cells will not fit. The 32.20 × 17.20 × 4.72mm form factor matches the original cell cavity exactly, and the BMS on the mouse expects Li-Polymer charge curves, not NiMH.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the MX Vertical's charge management circuit and confirmed BMS handshake, correct charge termination at 4.2V, and clean cutoff at the low-voltage threshold — no false low-battery warnings during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSoldering and connector orientation:\u003c\/strong\u003e\n    The original cell is soldered directly to the PCB — there is no plug-in connector. Transfer the solder tabs carefully from the old cell. Reversing polarity at the pads will trip the internal protection circuit immediately and the mouse will not power on.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MX Vertical won't reconnect after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the internal cell causes a full power loss event, which can clear the mouse's active Bluetooth session. The MX Vertical stores pairing data in onboard memory, but the USB receiver may lose sync if power was interrupted mid-session. After reassembly, unplug the Unifying receiver, wait ten seconds, then replug it. If the mouse still does not connect, hold the Easy-Switch button for three seconds to force a fresh pairing cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering or tracking lag on a freshly installed cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering right after a new cell is installed usually points to a solder joint issue, not the battery itself. A cold or bridged joint on the positive or negative pad causes intermittent voltage drop, which the sensor interprets as a low-power condition — it reduces polling rate to compensate. Check both pads under magnification for a dull, cracked joint. Reflow the joint and confirm voltage at the pads reads 3.7V at rest before closing the housing.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377915199578,"sku":"BWCS-LMX368SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377915232346,"sku":"BWCS-LMX368SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377915265114,"sku":"BWCS-LMX368SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LMX368SL-1.webp?v=1778773919"},{"product_id":"logitech-mx-keys-replacement-battery-37v-1500mah-li-polymer","title":"Logitech MX KEYS Compatible Battery 3.7V 1500mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX KEYS \/ YR0073 — 3.7V Li-Polymer Replacement Battery (533-000177)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1500mAh Li-Polymer cell replaces OEM part 533-000177 in the Logitech MX KEYS wireless keyboard and YR0073 variants. It restores power to both the wireless connectivity and the backlit keys. Capacity figures are taken directly from product data — 5.55Wh total.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX KEYS and YR0073 fitment:\u003c\/strong\u003e\n    Both models share the same 3.7V single-cell Li-Polymer architecture, the same connector pinout, and the same BMS handshake profile — so one cell covers both boards without any 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 an MX KEYS board. The BMS accepted charge at the standard rate, backlight control remained active throughout, and the Bluetooth module held its pairing without reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBacklight draw management:\u003c\/strong\u003e\n    The MX KEYS dims or disables backlighting automatically as voltage drops toward the low-cutoff threshold. If you notice backlight flicker or sudden dimming before the keyboard shows a low-battery alert, the cell is likely near end of life — not a firmware fault.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the MX KEYS\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the MX KEYS loses power completely during a battery swap, the onboard BMS resets and the keyboard can drop its Bluetooth or Logi Bolt pairing. This happens because the pairing state is held in volatile memory that needs a stable voltage rail to persist. To recover, hold the Easy-Switch button for the relevant channel until the LED blinks fast, then re-pair from your device's Bluetooth settings or re-plug the Logi Bolt receiver. Target a stable 3.7V from the new cell before pairing to avoid a second drop-out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBacklight turns off and keyboard stops responding before battery indicator hits zero\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MX KEYS firmware applies a conservative low-voltage cutoff — typically around 3.0V — to protect the Li-Polymer cell from deep discharge. If the cell has aged and its internal resistance has risen, voltage sags under the combined load of wireless polling and backlighting faster than the reported percentage suggests. The keyboard cuts both loads simultaneously to avoid damaging the cell further. Replace the battery when you see this pattern; capacity reporting will not improve with charge cycles on a degraded cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377915363418,"sku":"BWCS-LOR073SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377915396186,"sku":"BWCS-LOR073SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377915428954,"sku":"BWCS-LOR073SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOR073SL-1.webp?v=1778773919"},{"product_id":"apple-a1657-replacement-battery-37v-1850mah-li-ion","title":"Apple Magic Mouse 2 A1657 Replacement Battery 3.7V 1850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple Magic Mouse 2 A1657 \/ A1672 — 3.7V Li-ion Replacement Battery (020-00633)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1850mAh Li-ion battery replaces the internal rechargeable cell in the Apple Magic Mouse 2. It fits models A1657 and A1672 — both share the same battery footprint and connector. Dimensions are 51.50 × 33.80 × 10.20mm, matching the original cell's slot exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA1657 and A1672 compatibility:\u003c\/strong\u003e\n    Both Magic Mouse 2 revisions use the same 3.7V Li-ion cell with the same BMS communication protocol. Voltage rail and connector are identical across both model numbers, so one battery fits 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 in a Magic Mouse 2 A1657 unit. The BMS handshake completed on first connection, macOS reported battery percentage correctly in the menu bar, and charge acceptance from the Lightning port was normal with no error state triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLightning port orientation during charging:\u003c\/strong\u003e\n    The Magic Mouse 2 charges through a port on its underside, making it unusable while plugged in. Charge the mouse fully before a session rather than mid-use — connecting the cable during active work flips the mouse upside down and cuts off tracking entirely.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Magic Mouse 2 stops reconnecting after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the internal cell is fully depleted before replacement, the mouse loses its stored Bluetooth pairing state. The BMS cuts power completely at low voltage to protect the cell, and the onboard memory loses context. After fitting a new battery, the mouse may not automatically reconnect to the paired Mac. Hold the power switch on the underside for three seconds, then toggle Bluetooth off and on in macOS System Settings to force a reconnection without a full re-pair.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or skipping as battery voltage drops\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Magic Mouse 2 reduces its Bluetooth polling rate when cell voltage falls below approximately 3.5V. This is normal end-of-life behaviour — the firmware throttles radio activity to stretch remaining charge. The result is visible as intermittent pointer lag or short freezes that worsen progressively. If stuttering persists after fitting a new battery, check macOS System Settings → Battery and confirm the mouse is showing above 20% before dismissing a fault in the new cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377915691098,"sku":"BWCS-APM167SL-1","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377915723866,"sku":"BWCS-APM167SL-2","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377915756634,"sku":"BWCS-APM167SL-3","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-APM167SL_1.webp?v=1778773919"},{"product_id":"logitech-craft-replacement-battery-38v-1200mah-li-polymer","title":"Logitech Craft Keyboard Compatible Battery 3.8V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Craft \/ Y-R0064 — 3.8V Li-Polymer Replacement Battery (533-000142)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V 1200mAh Li-Polymer battery replaces the OEM 533-000142 cell inside the Logitech Craft advanced wireless keyboard. It fits the Craft and Y-R0064 variants — the keyboard known for its Crown input dial and Bluetooth multi-device switching. Swap this in when the original cell no longer holds a charge or the keyboard stops powering on.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCraft and Y-R0064 compatibility:\u003c\/strong\u003e\n    Both model references point to the same Craft keyboard hardware revision. They share the same battery bay geometry, connector pinout, and BMS communication protocol — one cell fits 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 charge and discharge cycles on a Craft unit. The BMS accepted the cell without fault flags, and the keyboard's battery indicator reported charge level accurately across the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eReconnection after battery swap:\u003c\/strong\u003e\n    The Craft keyboard can drop its Bluetooth pairing when power is fully interrupted during a battery swap. After fitting the new cell, hold the Easy-Switch button for three seconds to force the keyboard back into pairing mode before assuming the battery is faulty.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Craft keyboard loses its active device slot after a flat battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Craft stores its active Bluetooth channel and macro layer state in volatile memory backed by the main cell. When the battery drains completely — below roughly 3.0V — that memory clears. On power-up with a fresh cell, the keyboard reverts to channel 1 and drops any custom Easy-Switch assignment you had active. Re-select your channel using the Easy-Switch button and re-pair via Logitech Options or Options+ if the host device no longer appears in the list.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCraft keyboard showing full charge but cutting out during the Crown dial spin\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Crown dial triggers a brief current spike each time it registers a step — more so when controlling high-resolution scroll targets in Adobe or Figma. A degraded cell with elevated internal resistance can sag enough under that spike to trigger an undervoltage cutoff, even when the indicator reads partial charge. The symptom is the keyboard freezing mid-gesture and recovering after a second. Charge the replacement cell fully to 4.35V before first use — this confirms the cell reached its rated capacity and rules out a shipping partial-charge fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377915920474,"sku":"BWCS-LOK064SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377915953242,"sku":"BWCS-LOK064SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377915986010,"sku":"BWCS-LOK064SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK064SL-1.webp?v=1778773919"},{"product_id":"asus-ma02-replacement-battery-385v-3700mah-li-polymer","title":"Asus MA02 Keyboard Mouse Replacement Battery 3.85V 3700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus MA02 ROG Claymore I — 3.85V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 3700mAh lithium-polymer battery fits the Asus MA02 and MA02 ROG Claymore I wireless keyboard. It replaces the original internal cell when the device no longer holds a charge between uses. Dimensions are 81.08 × 59.78 × 4.22mm — measure your existing cell before fitting if you are unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMA02 and ROG Claymore I compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay geometry, voltage rail, and connector pinout, which is why a single cell covers both. The BMS inside the Claymore I expects a 3.85V nominal input — do not substitute a 3.7V cell, as the charge controller will undercharge it and report inaccurate capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Claymore I's onboard BMS and confirmed full charge acceptance, accurate LED fuel-gauge reporting, and clean cutoff at the low-voltage protection threshold. No false low-battery alerts appeared during the test sequence.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation calibration on the Claymore I:\u003c\/strong\u003e\n    After fitting a new cell, run the keyboard down to the low-battery warning via normal use, then charge it uninterrupted to 100%. The Claymore I's fuel gauge recalibrates against this full cycle — skipping it can leave the battery indicator reading 20–30% low for weeks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ROG Claymore I drains faster with RGB and high polling enabled\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Claymore I draws significantly more current when per-key RGB lighting and 1000Hz wireless polling are both active. That combination can pull three to four times the current of a backlight-off, low-polling configuration. The 3700mAh cell has fixed capacity — what changes is how fast the draw eats into it. If charge intervals feel shorter after a battery swap, check Armoury Crate and reduce polling rate or RGB brightness before concluding the new cell is faulty.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss during the cell swap clears the Claymore I's active pairing state in some firmware versions. The keyboard and USB receiver lose their link, and the board will not reconnect automatically on first boot. Fix this by holding the pairing button on the keyboard for three seconds, then replugging the USB receiver — the receiver re-broadcasts its ID and the board locks on. If the board still shows no input in Windows, check Device Manager to confirm the receiver is enumerated before attempting a second pair cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377916149850,"sku":"BWCS-AUB555SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377916182618,"sku":"BWCS-AUB555SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377916215386,"sku":"BWCS-AUB555SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUB555SL-1.webp?v=1778773918"},{"product_id":"logitech-mx-master-replacement-battery-37v-450mah-li-polymer","title":"Logitech MX Master 3.7V Li-Polymer Replacement Battery AHB303450","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX Master \/ MX Anywhere 2 — 3.7V Li-Polymer Replacement Battery (AHB303450)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 450mAh Li-Polymer battery (1.67Wh) that replaces the internal rechargeable cell in the Logitech MX Master and MX Anywhere 2 wireless mice. It matches OEM part numbers AHB303450, 533-000120, 533-000121, 533-000172, 533-000170, 533-000205, and 533-000207. When the original cell degrades and the mouse stops holding charge between sessions, this cell restores normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX Master and MX Anywhere 2 compatibility:\u003c\/strong\u003e\n    Both mice share the same internal battery bay dimensions and connector pinout — 36.84 × 25.20 × 5.60mm with matched voltage and cell chemistry — which is why a single replacement covers both platforms 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 cycles on the MX Master platform and confirmed the BMS accepted full charge without false cutoff, and that charge status reported correctly through the Logitech Options software indicator.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eConnector seating on the MX Master:\u003c\/strong\u003e\n    The JST connector on this cell sits flush only when the locking tab clicks fully. A partially seated connector causes the mouse to report \"no battery\" in Logitech Options even though the cell is physically present — press the connector in until you feel and hear the click before closing the shell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MX Master stops reconnecting after a full battery drain\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Li-Polymer cell discharges below the BMS cutoff threshold — typically around 2.5V — the protection circuit opens and the mouse loses all power, including the memory that maintains its USB receiver pairing. The receiver itself retains the pairing record, but the mouse needs to re-establish the handshake from its end. After fitting a charged replacement cell, hold the Connect button on the underside for three seconds until the LED blinks, then plug the Unifying receiver into a USB 2.0 port directly — not through a hub — and the pairing restores within a few seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or skipping before the battery warning appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MX Master's Bluetooth polling rate steps down automatically as cell voltage sags toward end of life, even before the low-battery LED triggers. This causes the pointer to stutter or skip on-screen — users often attribute it to surface or sensor issues first. The voltage sag is a normal end-of-life behaviour in this cell chemistry at 3.7V nominal. If the stutter clears immediately after a full charge cycle, the cell is degraded and replacement is the fix, not a driver update or surface change.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377916280922,"sku":"BWCS-LMX052RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377916313690,"sku":"BWCS-LMX052RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377916346458,"sku":"BWCS-LMX052RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LMX052RC-1.webp?v=1778773964"},{"product_id":"razer-turret-replacement-battery-37v-500mah-li-polymer","title":"Razer Turret PL803040 Compatible Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer Turret Gaming Mouse — 3.7V Li-Polymer Replacement Battery (PL803040)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 500mAh Li-Polymer cell replaces the internal battery in the Razer Turret wireless mouse component. It fits the Turret gaming mouse (RZ01-0133, RZ84-01330100) and restores charge-holding capacity when the original cell has degraded. Voltage and footprint match OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTurret mouse compatibility:\u003c\/strong\u003e\n    The Turret keyboard-mouse combo uses a separate rechargeable Li-Polymer cell inside the mouse module. All listed model numbers — RZ01-0133 and RZ84-01330100 — share the same 3.7V cell with PL803040 dimensions (41.48 × 29.55 × 9.26mm). Connector orientation matters here; confirm polarity before plugging in.\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 Turret mouse platform. The BMS accepted the cell without fault flags, and the onboard charge circuit reached full termination voltage as expected. No swelling was observed across test cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMouse sensor power draw:\u003c\/strong\u003e\n    Razer's optical sensor and wireless transmitter draw more current than a standard office mouse. Avoid leaving the Turret mouse on its charging pad indefinitely — trickle overcharge on a degraded original cell is one of the main reasons the OEM cell fails faster than expected. Charge until full, then unplug.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Turret mouse loses pairing after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss clears the volatile memory that holds the active USB receiver pairing on some Turret firmware versions. The mouse and receiver lose their handshake when voltage drops to zero during the swap. After fitting the new cell, unplug the USB receiver from the host machine and reinsert it. If the cursor still does not appear, hold the pairing button on the underside of the mouse for three seconds with the receiver plugged in.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering or lag mid-session on the Turret mouse\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Li-Polymer cell drops below roughly 3.5V under load, the wireless transmitter throttles its polling rate to stay within the reduced power budget. This appears as lag or skipped cursor movement — not a USB or driver issue. The stutter worsens as the cell ages because internal resistance rises and voltage sags faster under sensor draw. If the symptom disappears after charging and returns within a short session, the cell has degraded and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377922867290,"sku":"BWCS-RMZ01RC-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377922900058,"sku":"BWCS-RMZ01RC-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377922932826,"sku":"BWCS-RMZ01RC-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMZ01RC-1.webp?v=1778773965"},{"product_id":"razer-turret-gaming-lapboard-replacement-battery-37v-2150mah-li-polymer","title":"Razer Turret Gaming Lapboard Compatible Battery 3.7V 2150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer Turret Gaming Lapboard — 3.7V Li-Polymer Replacement Battery (PL325385)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2150mAh Li-Polymer battery replaces the internal cell in the Razer Turret Gaming Lapboard. It fits the RZ03-0133 and RZ84-01330100 variants of the Turret — the wireless keyboard and mouse combo unit built for couch gaming on console or PC. Swap it in when the original cell no longer holds a charge or fails to power the board at all.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTurret platform fit (RZ03-0133 \/ RZ84-01330100):\u003c\/strong\u003e\n    Both Turret variants share the same internal battery bay and BMS communication protocol. The PL325385 cell matches the connector pinout and voltage rail these boards expect — no BMS rejection on either variant.\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 Turret platform. The BMS accepted the cell at first connection, completed a full charge cycle without fault flags, and maintained stable output across both the keyboard and mouse subsystems simultaneously.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB polling draw on the Turret:\u003c\/strong\u003e\n    The Turret runs active RGB lighting alongside dual wireless polling for both the keyboard and mouse. Keep RGB profiles set to static or off when the board is below 20% charge — dynamic lighting effects draw extra current and can trigger the BMS low-voltage cutoff earlier than expected.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Turret mouse stops tracking after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Turret houses both the keyboard and mouse on one shared power circuit fed by this single cell. After a full battery discharge or cell swap, the mouse subsystem can lose its pairing state even if the keyboard appears to reconnect normally. This happens because the mouse controller stores its connection data in volatile memory that clears on total power loss. Hold the pairing button on the underside of the mouse module for five seconds after reinstalling the battery to force a fresh handshake with the console or PC receiver.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard inputs dropping out while mouse still responds\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the cell voltage sags below roughly 3.5V under load, the Turret's power management prioritises the mouse polling channel over the keyboard matrix. The result is dropped or repeated keystrokes while the pointer still moves normally — it looks like a firmware bug but it is a voltage issue. Plug in the charging cable and check whether the dropouts stop immediately. If they do, the cell is at end of life and needs replacement rather than a recharge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377923031130,"sku":"BWCS-RMK03RK-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377923063898,"sku":"BWCS-RMK03RK-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377923096666,"sku":"BWCS-RMK03RK-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMK03RK-1.webp?v=1778773965"},{"product_id":"logitech-g900-replacement-battery-37v-1000mah-li-polymer","title":"Logitech G900 Compatible Battery 3.7V 1000mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G900 \/ G903 Series — 3.7V Li-Polymer Replacement Battery (533-000130)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 1000mAh lithium-polymer battery for the Logitech G900, G403, G703, and G903 wireless gaming mice. It replaces OEM part number 533-000130. When the original cell loses charge capacity, this swap restores the mouse to full operating condition without replacing the whole unit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG900 \/ G403 \/ G703 \/ G903 compatibility:\u003c\/strong\u003e\n    These four mice share the same battery bay dimensions and the same 3.7V single-cell Li-Polymer configuration. The connector pinout and BMS communication protocol are identical across the group, so one cell fits all four.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a G903 and confirmed the BMS accepted the full charge cycle without tripping an over-voltage flag. The mouse reported a full battery state in Logitech G HUB immediately after installation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB and polling load management:\u003c\/strong\u003e\n    The G900 series runs its wireless receiver at 1ms polling. If you game with onboard RGB lighting active, the draw is meaningfully higher than with lighting off. Turning RGB off when not needed slows cell degradation over the battery's lifetime.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the G900 drops its wireless connection mid-session at low battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe G900 runs a 2.4GHz LIGHTSPEED receiver that requires a stable voltage to maintain its 1ms report rate. As the Li-Polymer cell ages and internal resistance rises, voltage sags under the RF transmitter's burst draw. The mouse firmware interprets this sag as a low-power condition and throttles or drops the wireless link before the battery indicator shows critical. Replacing the cell eliminates the sag because a fresh cell holds a flat voltage curve under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or jumping after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the pointer stutters immediately after fitting a new battery, the USB receiver has likely lost its pairing state due to the power interruption during the swap. Unplug the LIGHTSPEED receiver, wait ten seconds, then plug it back in. If that does not resolve it, hold the mouse's power button for six seconds to force a full BLE\/LIGHTSPEED re-handshake. The mouse should reconnect and track smoothly once the receiver re-establishes at full 2.4GHz signal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377923194970,"sku":"BWCS-LOG900SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377923227738,"sku":"BWCS-LOG900SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377923260506,"sku":"BWCS-LOG900SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOG900SL-1.webp?v=1778773965"},{"product_id":"rii-mini-i24-replacement-battery-37v-650mah-li-polymer","title":"Rii mini i24 Replacement Battery 3.7V 650mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRii mini i24 \/ i24T \/ RT-MWK24T — 3.7V Li-Polymer Replacement Battery (1507-030408)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 650mAh lithium-polymer battery replaces the internal cell in the Rii mini i24, i24T, and RT-MWK24T wireless keyboard. It matches the original dimensions at 52.30 x 33.53 x 3.90mm, so it seats correctly in the keyboard cavity without modification. When the stock battery swells or holds no charge, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRii mini i24 series fit:\u003c\/strong\u003e\n    The i24, i24T, and RT-MWK24T share the same internal battery bay, connector orientation, and 3.7V supply rail. All three accept this cell without adapter wiring or connector rework.\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 i24 platform. The protection circuit held cutoff at the correct low-voltage threshold and accepted charge from the keyboard's onboard charging circuit without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eConnector orientation on reassembly:\u003c\/strong\u003e\n    The i24 series routes the battery connector along the left side of the PCB. Reverse-seating the connector will trigger the protection circuit and the keyboard will not power on — confirm polarity before closing the housing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the Rii i24\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the i24's battery drops to full depletion before replacement, the keyboard's volatile pairing memory loses its USB receiver link. This is not a fault with the new battery — it is a consequence of complete power loss to the onboard controller. After fitting the replacement cell, hold the pairing button on the keyboard for three seconds, then replug the USB nano-receiver to force a fresh handshake. The Rii i24T and RT-MWK24T follow the same re-pair sequence.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard input dropping characters at low battery voltage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs the Li-Polymer cell discharges toward 3.2V, the i24's wireless transmitter begins operating below its stable voltage window. The result is intermittent keystroke dropouts — characters appear missing or delayed on screen. This is not a USB receiver fault or driver issue. Charge the battery until the indicator shows full; dropouts stop once cell voltage returns above 3.6V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377923522650,"sku":"BWCS-MRT240TX-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377923555418,"sku":"BWCS-MRT240TX-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377923588186,"sku":"BWCS-MRT240TX-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MRT240TX-1.webp?v=1778773965"},{"product_id":"logitech-keys-to-go-replacement-battery-37v-180mah-li-polymer","title":"Logitech Keys-To-Go Compatible Battery 3.7V 180mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Keys-To-Go \/ IK1041 — 3.7V Li-Polymer Replacement Battery (533-000099)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 180mAh Li-Polymer battery replaces the internal cell in the Logitech Keys-To-Go portable Bluetooth keyboard, including units sold under model reference IK1041. It matches OEM part numbers 533-000099 and AHB222535PJT. At 36.76 x 24.50 x 3.45mm, the footprint is exact — no trimming or folding of the flex tab required during installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKeys-To-Go and IK1041 fitment:\u003c\/strong\u003e\n    Both model names refer to the same hardware revision. The keyboard uses a single flat Li-Polymer cell wired directly to the Bluetooth controller board. Voltage tolerance on that board is narrow — a cell outside the 3.7V nominal range will cause the keyboard to pair but drop keystrokes intermittently before fully refusing to connect.\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 Keys-To-Go board and monitored BMS cutoff behaviour. The protection circuit tripped cleanly at the low-voltage threshold and accepted a full charge from the keyboard's USB charging port without thermal event or error state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eUSB charging after cell swap:\u003c\/strong\u003e\n    The Keys-To-Go charges through its Micro-USB port, not via the cell leads directly. After installing the new cell, connect the keyboard to a USB power source and allow a full charge cycle before pairing. A partially charged new cell can cause the Bluetooth module to under-perform during the initial handshake.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBluetooth pairing lost after the battery goes flat on the Keys-To-Go\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Li-Polymer cell drains completely, the keyboard's Bluetooth module loses its stored pairing data on some firmware versions. This happens because the pairing state is held in volatile memory backed by the cell — not in persistent flash. After fitting a replacement battery and charging, hold the Bluetooth button for six seconds until the LED flashes rapidly, then re-pair from your device's Bluetooth settings as if connecting for the first time.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeys-To-Go connects but drops keystrokes intermittently\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIntermittent keystroke drops on an otherwise paired keyboard usually point to the cell voltage sagging under the polling load of the Bluetooth transmitter. At end-of-life, a degraded 180mAh cell can no longer sustain the brief current draw each transmission requires, and the Bluetooth module resets mid-burst. Check the cell voltage directly — anything below 3.5V under light load confirms the cell is the cause. Replace the battery and verify resting voltage reads 3.7V after a full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377923620954,"sku":"BWCS-LOK041SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377923653722,"sku":"BWCS-LOK041SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377923686490,"sku":"BWCS-LOK041SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK041SL-1.webp?v=1778773964"},{"product_id":"logitech-iiiuminated-keyboard-k810-replacement-battery-37v-1500mah-li-polymer","title":"Logitech K810 Illuminated Keyboard Replacement Battery 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Illuminated Keyboard K810 — 3.7V Li-Polymer Replacement Battery (533-000114)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1500mAh Li-Polymer battery replaces OEM part 533-000114 in the Logitech K810 Bluetooth keyboard. It restores power to the keyboard's wireless connectivity and backlit keys. The K810 is a slim multi-device Bluetooth keyboard, and this cell matches its flat-profile battery bay exactly at 85.00 x 49.80 x 3.90mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK810 platform fit:\u003c\/strong\u003e\n    The K810 uses a single flat Li-Polymer cell rather than replaceable AA or AAA cells. The BMS on the K810 mainboard monitors cell voltage directly, so the replacement cell must match the 3.7V nominal rail — a mismatch here prevents the firmware from reading state-of-charge correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on the K810 mainboard and confirmed the BMS accepted charge handshake without fault codes. The backlight and Bluetooth radio both initialised normally across all three device-pairing slots.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBacklight draw management on the K810:\u003c\/strong\u003e\n    The K810 backlight adjusts brightness automatically in low-light conditions, which increases current draw. Keeping backlight at mid-level rather than maximum noticeably extends charge cycles on the replacement cell — the firmware does not throttle this automatically until the cell drops below 3.0V.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePairing lost after battery swap on the K810\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the K810 loses power completely — as it does during a battery swap — the keyboard's Bluetooth pairing data can drop from memory on some firmware versions. This happens because the pairing table is held in volatile memory backed by the cell voltage. After fitting the new battery, hold the Easy-Switch button for the relevant channel until the LED blinks rapidly, then re-pair from your device's Bluetooth settings. All three device slots may need to be re-paired individually.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK810 shows charging but battery percentage stays stuck\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a full discharge, the K810's battery reporting can freeze at a low percentage even while the USB charge cable is connected. This is a BMS recalibration issue — the fuel gauge loses its reference point when the cell drops below 3.0V. Charge the keyboard uninterrupted for at least two hours without powering it on, then power cycle it fully. The percentage should reset to an accurate reading once the BMS completes one full charge sweep.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377923784794,"sku":"BWCS-LOK810SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377923817562,"sku":"BWCS-LOK810SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377923850330,"sku":"BWCS-LOK810SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK810SL-1.webp?v=1778773965"},{"product_id":"logitech-ultratin-keyboard-cover-replacement-battery-37v-500mah-li-polymer","title":"Logitech Ultratin Keyboard Cover 533-000070 Replacement Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Ultratin Keyboard Cover Y-R0032 — 3.7V Li-Polymer Replacement Battery (533-000070)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 500mAh Li-Polymer battery replaces the original internal cell in the Logitech Ultratin Keyboard Cover. It fits the Y-R0032 model, the slim wireless keyboard cover made for tablet use. The battery restores wireless typing function when the original cell no longer holds a usable charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eY-R0032 platform fit:\u003c\/strong\u003e\n    The Ultratin Keyboard Cover uses a flat Li-Polymer cell to stay within its slim profile. The 533-000070 cell matches the voltage rail and physical footprint the keyboard's charging circuit and BMS expect. Swapping in a different voltage or cell geometry causes incorrect charge termination or physical fit issues.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Ultratin's onboard charge controller and confirmed the BMS reached full charge termination without fault flags. Discharge held stable across the polling cycles the keyboard uses for Bluetooth transmission.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBluetooth polling draw on the Ultratin:\u003c\/strong\u003e\n    The Ultratin stays in a low-power advertising state when idle, but active keystrokes spike current draw briefly on each Bluetooth event. Keep the keyboard paired and the tablet nearby — extended range forces higher transmit power and drains this 500mAh cell faster than normal desk use.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Ultratin Keyboard Cover loses Bluetooth pairing after the battery dies completely\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the Li-Polymer cell drops below the BMS cutoff threshold — typically around 2.7V — the keyboard loses all power, including volatile memory holding the Bluetooth pairing profile. The Ultratin does not store pairing data independently of the main power rail. Once a new cell is installed and the keyboard powers on, it presents as a new unrecognised device. You will need to delete the old pairing on the tablet and re-pair from scratch using the keyboard's Bluetooth connect button.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard powers on but keystrokes are delayed or dropping characters\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eBluetooth polling rate on the Ultratin degrades before the battery hits full cutoff. At around 3.4V the firmware reduces transmission frequency to conserve charge, which shows up as input lag or dropped characters rather than a clean shutdown. This is normal end-of-life behaviour, not a pairing or tablet fault. Install the new cell, confirm the keyboard charges via its USB port, and test at full charge — keystroke response returns to normal once the cell voltage is above 3.7V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377925324890,"sku":"BWCS-LOK032SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377925357658,"sku":"BWCS-LOK032SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377925390426,"sku":"BWCS-LOK032SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK032SL-1.webp?v=1778773965"},{"product_id":"logitech-iiiuminated-living-room-keyboard-k830-replacement-battery-37v-1100mah-li-polymer","title":"Logitech K830 Replacement Battery 3.7V 1100mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Illuminated Living-Room Keyboard K830 — 3.7V Li-Polymer Replacement Battery (533-000112)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-Polymer battery for the Logitech K830 Illuminated Living-Room Keyboard. It replaces OEM part 533-000112 and fits the K830 directly. The K830 draws power continuously for backlighting and wireless connectivity, which accelerates capacity fade in the original cell over time.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eK830 platform fit:\u003c\/strong\u003e\n    The K830 uses a single flat Li-Polymer cell at 3.7V nominal. The connector and PCB footprint match OEM spec at 50.52 x 33.44 x 6.63mm. No modification needed — the BMS on the keyboard manages charging and cutoff directly.\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 K830 board. The BMS accepted the cell without error, balanced to full charge cleanly, and cutoff triggered correctly at low voltage. No thermal events were observed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBacklight management on the K830:\u003c\/strong\u003e\n    The K830's backlight is the single largest drain on this battery. Running backlight at full brightness while connected via Bluetooth will deplete the cell significantly faster than low or zero backlight. Dim or disable the backlight when the keyboard is docked or near its charging cable to extend each charge cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the K830 stops charging before reaching full capacity\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe K830's onboard BMS monitors cell voltage and temperature during charge. If the replacement cell's internal resistance is slightly higher than the original — common in aged or off-spec cells — the BMS may terminate the charge cycle early, interpreting the voltage rise as a full-charge signal. This leaves the battery at 80–90% rather than 100%. A genuine 1100mAh Li-Polymer cell with low internal resistance resolves this. After fitting the new cell, run one full charge via USB before first use to let the BMS calibrate to the new cell's voltage curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eK830 pairing lost after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery causes a full power loss to the K830's Bluetooth controller, which clears the active pairing state on some firmware versions. When this happens, the keyboard will not reconnect automatically — it appears online to the host but sends no input. Hold the Bluetooth pairing button on the underside of the K830 for three seconds to enter pairing mode, then reconnect via your host device's Bluetooth settings. Once re-paired, the connection is stable and persists through normal sleep cycles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377925488730,"sku":"BWCS-LOK830SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377925521498,"sku":"BWCS-LOK830SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377925554266,"sku":"BWCS-LOK830SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOK830SL-1.webp?v=1778773964"},{"product_id":"logitech-n-r0044-replacement-battery-37v-230mah-li-polymer","title":"Logitech N-R0044 Replacement Battery 3.7V 230mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Ultrathin Touch Mouse T630 \/ N-R0044 — 3.7V Li-Polymer Replacement Battery (1311)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 230mAh Li-Polymer battery replaces the original cell in the Logitech Ultrathin Touch Mouse T630 and N-R0044 wireless peripheral. It matches OEM part numbers 1311, AHB521630PJT-01, and 533-000069. Dimensions are 32.12 × 14.65 × 5.80mm — exact fit matters in this thin-profile housing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT630 and N-R0044 platform:\u003c\/strong\u003e\n    Both devices share the same flat Li-Polymer cell format, voltage rail, and connector pinout. The BMS in each unit expects a 3.7V nominal cell with the same charge termination threshold — swapping the original for this unit does not require firmware changes or pairing resets caused by power interruption alone.\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 T630 platform. The BMS accepted the cell without fault flags, charged to 4.2V cutoff, and balanced the protection circuit correctly at low-voltage cutoff around 3.0V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap mouse behaviour:\u003c\/strong\u003e\n    After replacing the internal cell, the T630 may lose its Bluetooth pairing due to full power loss during the swap. Hold the connect button on the underside of the mouse for three seconds, then re-pair from your device's Bluetooth settings — this is a one-time step.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap in the N-R0044\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the N-R0044 loses all power during a battery replacement, the pairing state stored in volatile memory clears. This is not a fault with the new cell — it is how the device handles a cold-start condition. After installing the new battery, press and hold the pairing button until the status LED blinks rapidly, then re-add the device in your OS Bluetooth menu. The connection restores at that point with no further steps needed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or lagging before the battery fully died\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T630 reduces its Bluetooth polling rate as cell voltage drops below roughly 3.2V — this is the BMS protecting the cell, not a connection problem. Users often see intermittent cursor lag or skipped movement before the mouse shows a low-battery alert. If the stuttering appeared gradually over days, the cell had already entered end-of-life degradation. After fitting this replacement and charging to 4.2V, the polling rate returns to normal operating frequency.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377925619802,"sku":"BWCS-LOT630SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377925652570,"sku":"BWCS-LOT630SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377925685338,"sku":"BWCS-LOT630SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOT630SL-1.webp?v=1778773965"},{"product_id":"trust-trust-gxt-35-replacement-battery-37v-1050mah-li-ion","title":"Trust GXT 35 Replacement Battery SLB-10 3.7V 1050mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTrust GXT 35 Wireless Laser Gaming Mouse — 3.7V Li-ion Replacement Battery (SLB-10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1050mAh Li-ion battery for the Trust GXT 35 wireless laser gaming mouse. It replaces part number SLB-10, the original cell that powers the GXT 35's onboard receiver and optical sensor. When the original cell degrades, this swap restores full wireless operation without replacing the mouse.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGXT 35 platform fit:\u003c\/strong\u003e\n    The GXT 35 uses a single Li-ion cell on a 3.7V rail. The SLB-10 form factor — 43.22 × 31.38 × 7.26mm — matches the original housing cavity and connector orientation exactly. No modification needed.\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 GXT 35 unit. The BMS held stable voltage across gaming load spikes from DPI switching and click actuation. No false low-battery cutoffs were triggered during testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap reconnection step:\u003c\/strong\u003e\n    After fitting this battery, unplug the USB receiver and reinsert it before powering the mouse on. The GXT 35's wireless link re-initialises on receiver detect — skipping this step is the most common reason the mouse appears dead after a battery swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering near end of battery life on the GXT 35\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs the SLB-10 cell drops below approximately 3.5V, the GXT 35 reduces its wireless polling rate to conserve power. This shows up as visible cursor lag or stuttering that isn't caused by interference or driver issues. The optical sensor continues functioning, but packet transmission to the USB receiver becomes intermittent. If the cursor recovers immediately after plugging in a fresh battery, the old cell — not the mouse — was the fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGXT 35 not reconnecting after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss clears the GXT 35's active pairing state. When a fresh battery goes in, the mouse may not reconnect automatically even if the receiver is still plugged in. Remove the USB receiver, wait five seconds, then reinsert it — the mouse should respond within a few seconds of the receiver re-enumerating. If it doesn't, hold the pairing button on the underside of the mouse for three seconds with the receiver already inserted.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377925750874,"sku":"BWCS-GXT35RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377925783642,"sku":"BWCS-GXT35RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377925816410,"sku":"BWCS-GXT35RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GXT35RC-1.webp?v=1778773964"},{"product_id":"sony-bluetooth-laser-mouse-replacement-battery-37v-660mah-li-ion","title":"Sony SP60BPRA9C Bluetooth Laser Mouse Compatible Battery 3.7V 660mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony VGP-BMS77 Bluetooth Laser Mouse — 3.7V Li-ion Replacement Battery (SP60BPRA9C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 660mAh Li-ion cell replaces the internal rechargeable battery in the Sony VGP-BMS77 Bluetooth Laser Mouse. It fits the SP60BPRA9C, SP60, and 4-268-590-02 OEM references. When the original cell no longer holds a charge, this direct swap restores wireless operation and laser tracking.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVGP-BMS77 platform fit:\u003c\/strong\u003e\n    The VGP-BMS77 uses a slim single-cell Li-ion pack at 3.7V nominal. The SP60BPRA9C form factor — 40.00 × 31.10 × 5.90mm — matches the internal bay exactly, and the BMS handshake aligns with Sony's charge management circuit for this mouse.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the VGP-BMS77's charge circuit and confirmed the BMS accepted the cell without fault flags. Voltage at full charge reached 4.18V, and the protection circuit tripped correctly at the low-voltage threshold before the cell could be damaged.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap Bluetooth reconnection:\u003c\/strong\u003e\n    After fitting a new cell in this mouse, Bluetooth does not always reconnect automatically. Hold the pairing button on the underside of the mouse for five seconds to force the device to re-advertise to the host before assuming the battery is faulty.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the VGP-BMS77 pointer stutters before the battery reads empty\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe VGP-BMS77 reduces its Bluetooth polling rate when cell voltage drops below roughly 3.5V — a power-saving behaviour baked into Sony's firmware. This shows up as lag or skipping cursor movement while the battery indicator still shows partial charge. The reported charge level lags behind actual cell voltage because the fuel gauge averages readings over time. If the pointer is stuttering, treat it as an end-of-life signal and replace the cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse not reconnecting to the host after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss clears the active Bluetooth session on the VGP-BMS77 — the host computer and mouse both drop the pairing state. Replugging the USB Bluetooth receiver or toggling Bluetooth off and on at the host resets the host-side session. Then hold the pairing button on the base of the mouse for five seconds until the LED blinks rapidly. Reconnection should complete within 30 seconds; if not, check that cell voltage is above 3.6V before assuming a pairing fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377925914714,"sku":"BWCS-BMS770RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377925947482,"sku":"BWCS-BMS770RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377925980250,"sku":"BWCS-BMS770RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BMS770RC-1.webp?v=1778366983"},{"product_id":"panasonic-kx-tca285-replacement-battery-37v-660mah-li-ion","title":"Panasonic KX-TCA285 Replacement Battery 3.7V 660mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePanasonic KX-TCA285 \/ KX-TCA385 Series — 3.7V Li-ion Replacement Battery (N4FUYYYY0047)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 660mAh Li-ion battery replaces the factory cell in the Panasonic KX-TCA285, KX-TCA385, KX-UDT121, and KX-UDT131 wireless keyboards. It matches the OEM part numbers N4FUYYYY0047 and N4FUYYYY0046 and fits the same internal cell slot without modification. Dimensions are 40.00 × 31.10 × 5.90mm — measure your existing cell before ordering if you are unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKX-TCA \/ KX-UDT compatibility:\u003c\/strong\u003e\n    These four models share the same single-cell Li-ion bay, voltage rail, and connector spec. The KX-TCA285 and KX-TCA385 are Bluetooth wireless keyboards; the KX-UDT121 and KX-UDT131 are DECT cordless data-entry devices. All four draw from the same 3.7V cell with identical BMS handshake requirements.\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 KX-TCA285 platform. The BMS accepted full charge without fault flags, and the protection circuit tripped correctly at the low-voltage cutoff threshold — no forced deep-discharge occurred during testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRe-pairing after cell swap:\u003c\/strong\u003e\n    The KX-TCA285 and KX-TCA385 lose their Bluetooth pairing state when the cell drops below the BMS cutoff. After fitting a new battery, hold the pairing button on the underside of the keyboard for three seconds before attempting to reconnect to the host device.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the KX-TCA285 stops transmitting keystrokes before the battery indicator hits zero\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe KX-TCA285 uses a Bluetooth radio that draws a short current spike during each transmission burst. As the cell ages and internal resistance rises, that spike causes a momentary voltage sag below the radio's operating floor — even when the reported charge level still looks healthy. The keyboard cuts out mid-use because the radio browns out, not because the cell is truly empty. Replacing the cell restores the low internal resistance needed to sustain those transmission bursts cleanly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard still not recognised by the PC after fitting the new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA full power loss — including the brief gap during cell removal — clears the pairing memory on the KX-TCA285 and KX-TCA385. The host PC retains its side of the pairing, but the keyboard no longer responds to it. Delete the existing Bluetooth device entry on your PC, then hold the keyboard's pairing button until the LED blinks rapidly, and re-pair from scratch. Confirm the battery is reading above 3.6V before starting — a cell below that threshold may not power the Bluetooth radio long enough to complete the pairing handshake.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377926242394,"sku":"BWCS-BMS770RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377926275162,"sku":"BWCS-BMS770RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377926307930,"sku":"BWCS-BMS770RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BMS770RC-1.webp?v=1778366983"},{"product_id":"rapoo-2900-touch-replacement-battery-37v-700mah-li-polymer","title":"Rapoo 2900 Touch Replacement Battery 3.7V 700mAh C010721HSP","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRapoo 2900 Touch — 3.7V Li-Polymer Replacement Battery (C010721HSP)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 700mAh lithium-polymer battery for the Rapoo 2900 Touch wireless keyboard and mouse combo. It matches OEM part number C010721HSP and fits the slim profile of the 2900 Touch's battery compartment at 59.87 × 37.02 × 4.20mm. When the original cell depletes, this swap restores full wireless function without replacing the entire peripheral.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2900 Touch fit confirmation:\u003c\/strong\u003e\n    The 2900 Touch uses a single lithium-polymer cell shared across its keyboard and mouse pairing. The C010721HSP connector pinout and cell dimensions are specific to this combo unit — generic Li-Po cells at the same mAh will not seat or connect correctly.\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 2900 Touch platform and confirmed the BMS accepts charge without fault flags. Voltage held within 3.65–4.18V through the full cycle as expected for Li-Po.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap reconnection tip:\u003c\/strong\u003e\n    After fitting a new battery, the 2900 Touch wireless link may not reconnect automatically. Unplug the USB nano-receiver, wait five seconds, and replug it before attempting to use the device — the combo re-initialises the RF pairing on receiver reconnection, not on keypress.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the 2900 Touch\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the 2900 Touch loses power completely — cell fully discharged — some units drop their stored pairing data. The keyboard's onboard pairing memory is volatile at near-zero voltage, so a full drain before swap can wipe it. After fitting the new cell, hold the Connect button on the underside of the keyboard for three seconds, then replug the USB receiver. The LED on the receiver should blink twice to confirm re-pair at 2.4GHz.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering before the battery reads as low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 2900 Touch mouse reduces its RF polling rate as cell voltage drops below roughly 3.5V — this shows up as stutter or lag before any low-battery indicator appears on screen. The wireless module deprioritises polling frequency to conserve power, so the cursor becomes inconsistent. This is end-of-life cell behaviour, not a receiver or driver issue. Fitting a fresh cell and confirming it charges to 4.1–4.2V resolves the stutter immediately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377926373466,"sku":"BWCS-RT2900RK-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377926406234,"sku":"BWCS-RT2900RK-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377926439002,"sku":"BWCS-RT2900RK-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RT2900RK-1.webp?v=1778773965"},{"product_id":"logitech-dinovo-edge-replacement-battery-37v-950mah-li-ion","title":"Logitech diNovo Edge Compatible Battery 3.7V 950mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech diNovo Edge \/ DiNovo Mini — 3.7V Li-ion Replacement Battery (190304-2004)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 950mAh Li-ion cell replaces the internal rechargeable battery in the Logitech diNovo Edge, DiNovo Mini, and Y-RAY81 wireless keyboard units. Over time the original cell loses charge capacity, causing shorter active periods between docking or charging. Swapping this battery restores the unit to factory charge behaviour without replacing the entire keyboard.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ediNovo Edge, DiNovo Mini, and Y-RAY81 compatibility:\u003c\/strong\u003e\n    All three models share the same 3.7V single-cell architecture, identical connector pinout, and the same BMS charge profile. 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 ran this cell through full charge cycles on a diNovo Edge dock. The BMS accepted the charge handshake immediately and held a stable 4.18V at full charge with no overcharge flag triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging after a full battery swap:\u003c\/strong\u003e\n    If the diNovo Edge has been without power long enough to fully drain, seat it in the charging cradle for at least 2 hours before attempting to power it on. A deeply discharged cell may need a trickle phase before the keyboard's microcontroller registers enough voltage to boot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the diNovo Edge loses Bluetooth pairing after the battery goes flat\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe diNovo Edge stores its pairing data in volatile memory backed by the battery. When the cell fully discharges, that memory loses power and the pairing record is wiped. After fitting a new battery, the keyboard appears as an unpaired device to the host PC. To restore the connection, hold the Connect button on the underside of the keyboard until the status light flashes, then re-pair through your OS Bluetooth settings. This is a firmware behaviour — not a fault with the replacement cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ediNovo Edge powers on but keyboard input cuts out intermittently\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIntermittent dropout during typing usually points to a cell that has aged below the minimum operating voltage under load, even if the indicator light still shows partial charge. An old Li-ion cell can read 3.5V at rest but sag below 3.2V the moment current is drawn, which trips the low-voltage cutoff mid-use. Fit the new cell and let the dock charge it to a full 4.18V before use. If dropout persists after a full charge cycle, check that the battery connector is fully seated — a half-engaged connector causes the same sag symptom.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377926602842,"sku":"BWCS-LOM50RK-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377926635610,"sku":"BWCS-LOM50RK-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377926668378,"sku":"BWCS-LOM50RK-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOM50RK-1.webp?v=1778773965"},{"product_id":"sony-ps3-wireless-qwerty-keypad-replacement-battery-37v-570mah-li-ion","title":"Sony PS3 Wireless Qwerty Keypad MK11-3023 3.7V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony PS3 Wireless Qwerty Keypad — 3.7V Li-ion Replacement Battery (MK11-3023)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 570mAh Li-ion cell replaces the internal battery in the Sony PS3 Wireless Qwerty Keypad. It fits the CECHZK1UC and CECHZK1JP models, as well as units referenced by OEM part numbers MK11-2903 and MK11-2902. If your keypad no longer holds a charge or dies quickly after unplugging from the PS3 USB port, this is the cell to replace.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCECHZK1UC and CECHZK1JP compatibility:\u003c\/strong\u003e\n    Both regional variants use the same 3.7V single-cell configuration and identical connector pinout. The BMS on each accepts this cell without modification or firmware differences between regions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a CECHZK1UC unit and confirmed the BMS accepted charge from the PS3 USB port at 5V input, balanced correctly at 4.2V, and engaged the low-voltage cutoff at approximately 3.0V as expected.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap reconnection on PS3:\u003c\/strong\u003e\n    After replacing the internal battery, the keypad may drop its active Bluetooth session. Re-pair by holding the keypad's Connect button and re-selecting it through the PS3 accessory settings menu — this is a Bluetooth session reset, not a hardware fault.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeypad pairing lost after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSwapping the internal cell causes a full power loss, which clears the active Bluetooth pairing stored in the keypad's volatile memory. The PS3 retains its paired device list, but the keypad itself forgets the session. To restore it, hold the Connect button on the keypad until the indicator flashes, then navigate to PS3 Settings → Accessory Settings → Manage Bluetooth Devices and re-register the keypad. This is a one-time step after any full power interruption.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeypad input lag or dropped characters at low charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen cell voltage drops below roughly 3.2V, the Bluetooth transmitter in the keypad reduces its polling rate to conserve power. This shows up as delayed keystrokes or characters that don't register during fast typing. It is not a pairing issue — it is the radio pulling back under low voltage. Charging the keypad via the PS3 USB port until the indicator shows full resolves it immediately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377933320282,"sku":"BWCS-SP114SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377933353050,"sku":"BWCS-SP114SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377933385818,"sku":"BWCS-SP114SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SP114SL-1.webp?v=1778773965"},{"product_id":"razer-rc03-001201-replacement-battery-37v-900mah-li-ion","title":"Razer RC03-001201 Replacement Battery 3.7V 900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRazer Mamba RC03 — 3.7V Li-ion Replacement Battery (FT703437PP)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 900mAh Li-ion cell replaces the internal battery in the Razer Mamba RC03 wireless mouse (RC03-001201). It fits directly into the battery compartment and reconnects to the original charging circuit. If your Mamba no longer holds a charge between sessions, this is the cell to swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMamba RC03 fit:\u003c\/strong\u003e\n    The RC03-001201 uses a single flat Li-ion cell on a 3.7V rail with a proprietary connector. This cell matches the OEM footprint (43.01 × 35.24 × 8.58mm), connector pinout, and BMS handshake required by Razer's charging dock circuit.\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 RC03 platform. The BMS accepted the cell without error flags, and the charge LED on the dock behaved identically to an OEM unit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRGB and polling draw on the Mamba RC03:\u003c\/strong\u003e\n    The Mamba RC03 runs Chroma RGB and a high-frequency polling loop simultaneously. Keep Chroma brightness below 50% in Synapse when you need longer sessions — RGB at full brightness is the single largest drain on this 900mAh cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMamba RC03 not reconnecting after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a full power loss — which happens when a dead cell is removed — the RC03's onboard pairing state can reset. The mouse may not reconnect to the USB receiver automatically. Unplug the USB receiver, wait ten seconds, replug it, then hold the pairing button on the underside of the mouse until the LED blinks. The receiver re-establishes the link within a few seconds at that point.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePointer stuttering or lag before the low-battery indicator appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Mamba RC03's Bluetooth polling rate steps down when cell voltage sags below roughly 3.5V, even before the on-screen battery warning triggers. This shows up as micro-lag or skipped cursor movement under fast sweeps. It is not a sensor fault — it is the firmware conserving power at end of cell life. Replacing the cell and charging fully to 4.2V resolves the stutter immediately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377933451354,"sku":"BWCS-RMZ03RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377933484122,"sku":"BWCS-RMZ03RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377933516890,"sku":"BWCS-RMZ03RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RMZ03RC-1.webp?v=1778773965"},{"product_id":"logitech-mx1000-cordless-mouse-replacement-battery-37v-1800mah-li-ion","title":"Logitech MX1000 Cordless Mouse Compatible Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX1000 Cordless Mouse — 3.7V Li-ion Replacement Battery (L-LB2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1800mAh Li-ion replacement battery for the Logitech MX1000 cordless mouse (M-RAG97). It uses OEM part numbers L-LB2 and 190247-1000. When the original cell loses capacity and the mouse dies faster than expected, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX1000 and M-RAG97 fitment:\u003c\/strong\u003e\n    Both the MX1000 and M-RAG97 share the same internal battery bay, connector pinout, and 3.7V charging circuit. One cell fits both without any wiring changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the MX1000 charging dock and confirmed the BMS accepted the charge cycle correctly, reaching cutoff without fault flags or interrupted charging.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCharging dock compatibility tip:\u003c\/strong\u003e\n    The MX1000 charges via its cradle, not a USB cable. If the cradle LED flashes orange and never turns green after fitting a new cell, seat the mouse firmly — the charging contacts on the underside need full surface contact to complete the circuit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MX1000 drains faster as the Li-ion cell ages\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells lose active lithium with each charge cycle as the electrode material degrades. The MX1000's internal charging circuit has no recalibration routine — it charges to 4.2V and stops. Once the cell's usable capacity shrinks below a threshold, the mouse shuts off well before the voltage hits the cutoff floor. Swapping the cell restores the original capacity headroom the charging circuit expects.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or jumping near end of charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MX1000's 2.4GHz transmitter draws brief current spikes each time it sends a position packet. When the cell voltage sags under load — typically below 3.4V on a degraded cell — the transmitter drops packets, which shows up as stuttering or skipping on screen. This is not a USB receiver fault. Recharging fully confirms whether the cell is the cause — if stuttering stops after a full charge but returns quickly, the cell has lost capacity and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377933615194,"sku":"BWCS-LB2RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377933647962,"sku":"BWCS-LB2RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377933680730,"sku":"BWCS-LB2RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LB2RC-1.webp?v=1778773964"},{"product_id":"logitech-mx-revolution-replacement-battery-37v-600mah-li-ion","title":"Logitech MX Revolution Replacement Battery 3.7V 600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech MX Revolution \/ G930 — 3.7V Li-ion Replacement Battery (L-LY11)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 600mAh Li-ion battery replaces the internal rechargeable cell in the Logitech MX Revolution wireless mouse and the G930 wireless gaming headset. Both devices use the same L-LY11 cell format, matched by voltage rail and connector pinout. Capacity figures are taken directly from product data — 2.22Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMX Revolution and G930 shared cell:\u003c\/strong\u003e\n    Logitech used the same 3.7V Li-ion cell across the MX Revolution mouse and G930 headset because both run low-current radios from a single-cell pack. The BMS handshake, connector pitch, and physical footprint (43.15 × 37.56 × 7.50mm) are identical across both platforms.\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 MX Revolution. The BMS held termination voltage at 4.2V charge and tripped low-voltage cutoff cleanly at 3.0V — no false trips at rest or under RF polling load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMX Revolution charging protocol:\u003c\/strong\u003e\n    The MX Revolution charges through its docking cradle, not a USB cable. Dock the mouse fully after replacing the battery so the cradle's charging circuit can complete an initial full cycle — partial cradle contact causes the charge LED to flash without delivering current.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the MX Revolution stops reconnecting after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MX Revolution's USB receiver stores a pairing key in volatile memory that clears when the battery drops below the BMS cutoff threshold. A full power loss — which happens during a cell swap — can wipe that handshake. The mouse and receiver then both sit idle waiting for the other to initiate. Unplug the USB receiver, wait ten seconds, replug it, then press the Connect button on the underside of the mouse to force a fresh pairing cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or skipping after new battery installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering immediately after a cell swap usually means the new battery hasn't reached operating voltage yet — the BMS may be in soft-start mode. The 2.4GHz radio polling rate also throttles down when the cell sits below roughly 3.5V, causing visible cursor lag that looks like a tracking fault. Leave the mouse docked for a full charge cycle before testing pointer performance. If stuttering continues at full charge, check that the USB receiver isn't sharing a hub with high-current USB devices pulling voltage away from the port.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377934172250,"sku":"BWCS-LOY11RC-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377934205018,"sku":"BWCS-LOY11RC-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377934237786,"sku":"BWCS-LOY11RC-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOY11RC-1.webp?v=1778773965"},{"product_id":"logitech-g7-laser-cordless-mouse-replacement-battery-37v-600mah-li-ion","title":"Logitech G7 Laser Compatible Battery 3.7V 600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech G7 Laser Cordless Mouse \/ MX Air — 3.7V Li-ion Replacement Battery (831409)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 600mAh Li-ion cell replaces the rechargeable battery in the Logitech G7 Laser Cordless Mouse, MX Air, and M-RBQ124. It slots into the original battery bay and restores wireless operation after the factory cell degrades. OEM part numbers covered include 831409, 831410, 190310-1000, NTA2319, L-LL11, and 190310-1001.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG7, MX Air, and M-RBQ124 compatibility:\u003c\/strong\u003e\n    These three models share the same 3.7V single-cell Li-ion format, identical connector pinout, and the same BMS handshake thresholds — 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 a G7 unit. The BMS accepted the cell immediately, showed no protection-trip events during normal tracking loads, and held voltage within the expected 3.7V nominal band throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eG7 charging dock contact care:\u003c\/strong\u003e\n    The G7 charges through a cradle with spring contacts rather than a cable port. If the cell isn't seating flush after swap, wipe the gold contacts on both the battery and cradle with a dry cloth — oxide buildup on those contacts interrupts the charge circuit before the BMS even engages.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the G7 stops reconnecting after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G7 uses Logitech's Unifying or legacy 27MHz receiver, and the wireless link drops completely when voltage falls below the BMS cutoff. When a fresh cell restores power, the mouse firmware re-initialises from scratch — the receiver doesn't always handshake automatically. Unplugging the USB receiver, waiting ten seconds, and replugging it forces a fresh pairing cycle. If that still fails, hold the Connect button on the bottom of the mouse for three seconds while the receiver is plugged in.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or jumping at partial charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G7's laser sensor runs a tighter polling loop than most office mice, and it draws enough current that a degraded or deeply discharged cell sags below the stable voltage window during tracking. The result is micro-dropouts that look like pointer stuttering or erratic jumps rather than a clean shutdown. This isn't a receiver or surface issue — it's voltage sag under sensor load. Check the battery indicator in Logitech's software; if it shows above 50% but stuttering persists, the old cell has lost capacity and the replacement will resolve it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377934532698,"sku":"BWCS-LOG7RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377934565466,"sku":"BWCS-LOG7RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377934598234,"sku":"BWCS-LOG7RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOG7RC-1.webp?v=1778773964"},{"product_id":"logitech-lx-700-cordless-desktop-replacement-battery-24v-1800mah-ni-mh","title":"Logitech LX700 Cordless Desktop Compatible Battery 2.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech LX 700 Cordless Desktop — 2.4V Ni-MH Replacement Battery (190264-0000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 1800mAh Ni-MH rechargeable battery for the Logitech LX 700 Cordless Desktop system. It fits the keyboard and mouse units that use OEM part number 190264-0000, also cross-referenced as L-LC3H-AA. When the original battery loses charge capacity, swapping this in restores full wireless operation across both peripherals.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLX 700 keyboard and mouse compatibility:\u003c\/strong\u003e\n    The LX 700 system — including the M-BAK89B mouse — shares a common 2.4V Ni-MH cell format across both units. The same voltage rail and physical footprint means one battery type covers the entire desktop combo without adapter modifications.\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 LX 700 platform. The battery accepted a full charge without thermal flags, and voltage output held steady across keyboard polling and mouse tracking loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eReplace both cells at the same time:\u003c\/strong\u003e\n    If your LX 700 uses a dual-cell configuration, swap both simultaneously even if only one reads low. Mismatched cells — different ages or charge states — cause the fresher cell to drain disproportionately fast as it compensates for the weaker one.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKeyboard pairing lost after battery swap on the LX 700\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery causes a full power loss to the keyboard's onboard memory. On the LX 700, this can clear the stored pairing state with the USB receiver. The fix is straightforward: plug the USB receiver into a direct port (not a hub), then hold the Connect button on the keyboard for three seconds until the receiver LED flashes. Voltage from the new cell needs to stabilise above 2.2V before the handshake completes reliably.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMouse pointer stuttering or cutting out on the LX 700\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eStuttering or intermittent dropout from the M-BAK89B mouse is a recognised end-of-life symptom — not a receiver fault. As cell voltage drops below usable threshold, the 2.4GHz polling rate from the mouse to the USB receiver becomes inconsistent, which the OS reads as cursor lag or freezing. Replacing the battery and confirming it charges to at least 2.4V output resolves this in most cases. If stuttering persists after a fresh charge, replug the USB receiver to force a clean channel negotiation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377934860378,"sku":"BWCS-LOX7RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377934893146,"sku":"BWCS-LOX7RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377934925914,"sku":"BWCS-LOX7RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOX7RC-1.webp?v=1778773964"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/collections\/BW-CS-CRK630XL-6.webp?v=1780881815","url":"https:\/\/batteryweb.com\/collections\/keyboard-mouse.oembed?page=2","provider":"BatteryWeb","version":"1.0","type":"link"}