{"title":"Payment Terminal","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery business that takes card payments knows how much is riding on that little handheld terminal working when a customer is standing at the counter ready to pay. A payment terminal with a weak or dying battery creates awkward moments, failed transactions, and in a busy retail or hospitality environment, a lineup that moves nowhere fast. It's a small piece of equipment with a direct impact on revenue, and keeping the battery in good shape is just part of running a smooth operation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWe carry replacement batteries for the most widely used wireless payment terminals and POS devices including Verifone, Ingenico, and other major card reader platforms that merchants depend on daily. Whether you run a single terminal at a small business or manage a fleet of handheld readers across multiple locations, finding the right replacement battery here is quick and straightforward. Keep your transactions flowing and your customers moving — a fresh battery is one of the easiest ways to make sure nothing gets in the way of a sale.\u003c\/p\u003e","products":[{"product_id":"pax-is057-e-replacement-battery-37v-1800mah-li-ion","title":"Pax IS057-E Replacement Battery 3.7V 1800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax IS057-E — 3.7V Li-ion Replacement Battery (IS057-E)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1800mAh lithium-ion battery replaces the internal cell in the Pax IS057-E payment terminal. It restores power to the terminal for card processing, receipt printing, and wireless connectivity between charges. Capacity is rated at 6.66Wh, matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePax IS057-E platform fit:\u003c\/strong\u003e\n    The IS057-E terminal uses a single-cell 3.7V Li-ion configuration with a battery management system that verifies cell voltage and connector polarity at boot. This cell matches that voltage rail and connector layout, so the BMS accepts it through the normal handshake sequence without throwing a hardware fault.\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 payment terminal load profile — display active, wireless radio polling, and a print trigger mid-cycle. The BMS held the connection through the current spike from the receipt printer motor and did not trip to overcurrent cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation cycle before live deployment:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle before putting the terminal into service. The IS057-E maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the on-screen charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe IS057-E runs a PCI-compliant security check during every boot, and part of that sequence includes a BMS handshake confirming the battery is within accepted voltage range. A new cell shipped in storage mode may sit below 3.5V, which can cause the terminal to stall partway through the boot sequence or restart in a loop. Connect the terminal to the charging cradle or USB-C power supply immediately after installation and allow it to charge for at least 20 minutes before attempting to power on. Once the cell reaches approximately 3.6V, the BMS handshake completes and the PCI sequence runs through normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stuck at 99% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is normal behaviour on a new lithium-ion cell. The charge IC on the IS057-E enters a top-off phase near full capacity, reducing current to a trickle while the cell absorbs the final charge. The indicator stays at 99% during this phase because the terminal does not register 100% until the charge IC sends a termination signal, which can take 30 to 60 minutes after the display reads near-full. Leave the terminal on charge and do not interrupt the cycle. The indicator will step to 100% once the top-off phase ends and the charge IC terminates.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43303969849434,"sku":"BWCS-PAS057BL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43303969882202,"sku":"BWCS-PAS057BL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43303969914970,"sku":"BWCS-PAS057BL-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAS057BL_1.webp?v=1777520717"},{"product_id":"feitian-f20-replacement-battery-76v-2500mah-li-ion","title":"Feitian F20 POS Compatible Battery 7.6V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFeitian F20 Smart POS — 7.6V Li-ion Replacement Battery (2ICP4\/55\/58)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V, 2500mAh (19Wh) Li-ion battery for the Feitian F20 and F20 Smart POS payment terminal. It replaces OEM part 2ICP4\/55\/58 and fits the same battery bay without modification. Use it when the original cell no longer holds charge through a full shift of card transactions.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF20 and F20 Smart POS fit:\u003c\/strong\u003e\n    Both models share the same 7.6V battery bay, connector pinout, and BMS handshake protocol. The terminal reads cell voltage and state-of-charge over the same communication line, so one battery covers both variants without any firmware workaround.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the F20 boot sequence and ran repeated transaction simulations — including receipt printer actuation and wireless data bursts. The BMS held steady through the combined current draw and did not trip an overcurrent cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for the F20:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into a live queue. The F20 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe F20 receipt printer pulls a short but sharp current spike each time it fires. On a new cell that has not yet completed a full charge-discharge cycle, the BMS can interpret this spike as an overcurrent event and cut output momentarily — causing the terminal to reboot. This is not a faulty battery. Run the terminal through two or three complete transaction cycles, including receipt prints, and the BMS learns the normal load profile. Reboots during printing stop once the cell is past its first calibration cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge slowly over weeks. If an F20 has been stored in a drawer for several months, the battery voltage may have dropped below the BMS recovery threshold — typically around 2.5V per cell. At that point the terminal will not respond to the power button because the BMS has locked output to protect the cell. Connect the terminal to its original charger and leave it for 20–30 minutes without pressing anything. Most BMS units on this cell design re-initialise once the charger pushes voltage back above 3.0V per cell, after which the terminal will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917101146,"sku":"BWCS-TNF200SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917133914,"sku":"BWCS-TNF200SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917166682,"sku":"BWCS-TNF200SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TNF200SL_1.webp?v=1779757974"},{"product_id":"sunmi-t5930-replacement-battery-76v-2500mah-li-polymer","title":"Sunmi T5930 POS Terminal Replacement Battery 7.6V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSunmi T5930 \/ V2 \/ V2 Pro — 7.6V Li-Polymer Replacement Battery (ZAP1522)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.6V 2500mAh Li-Polymer battery replaces the ZAP1522 cell in the Sunmi T5930, V2, and V2 Pro payment terminals. All three models share the same battery bay, connector pinout, and BMS handshake protocol. Capacity is 2500mAh (19Wh) — exactly as shipped from the factory.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT5930, V2, and V2 Pro compatibility:\u003c\/strong\u003e\n    These terminals run on the same 7.6V power rail and use an identical physical connector and BMS communication line. Swapping between models does not require firmware changes — the charge IC recognises the cell by voltage profile alone.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the T5930's charge IC and confirmed BMS handshake acceptance, correct cell voltage reporting, and stable draw during receipt printing — the highest single-event current spike in normal terminal operation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for POS environments:\u003c\/strong\u003e\n    After installing this battery, complete one full transaction cycle — including a receipt print — before putting the terminal into live service. The T5930 maps battery capacity during normal operation and needs at least one complete power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the T5930 reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor draws a short but sharp current spike — sometimes exceeding 1.5A for a fraction of a second. If the BMS on a new cell has not yet completed its first full charge-discharge initialisation, it can trip an overcurrent cutoff at that spike and reboot the terminal. This is not a faulty battery. Running one complete transaction cycle, including a print, lets the BMS calibrate its overcurrent threshold correctly and prevents false trips during live use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge at roughly 2–3% per month. A terminal left in a drawer for several months can drop below the 6.0V recovery threshold the T5930's charge IC requires to begin a charge cycle. Plugging the terminal in at this point may show no response at all. Connect the terminal to its original charger and leave it for 30–45 minutes without pressing the power button — most charge ICs include a trickle-recovery mode that slowly raises the cell above 6.0V before switching to normal charge. Once the screen shows any charge indicator, the battery has cleared the recovery threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917199450,"sku":"BWCS-SMV200BL-1","price":306.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917232218,"sku":"BWCS-SMV200BL-2","price":366.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917264986,"sku":"BWCS-SMV200BL-3","price":411.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMV200BL_1.webp?v=1779757974"},{"product_id":"sunmi-p2-pro-replacement-battery-76v-2400mah-li-polymer","title":"Sunmi P2 Pro Replacement Battery 7.6V 2400mAh QP1669","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSunmi P2 Pro — 7.6V Li-Polymer Replacement Battery (QP1669 \/ ZAP1522)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.6V 2400mAh Li-Polymer battery replaces the original cell in the Sunmi P2 Pro mobile payment terminal. It fits merchants running card transactions in retail, hospitality, and food service environments. Capacity is 18.24Wh — matching the original power delivery the terminal expects from its charge IC.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP2 Pro platform fit:\u003c\/strong\u003e\n    The P2 Pro uses a specific connector orientation and BMS handshake tied to its charge management IC. This cell carries the QP1669 and ZAP1522 part references the terminal's firmware recognises during power-on initialisation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the P2 Pro boot sequence and ran it through receipt printing and card reader draws. The BMS held stable under the combined wireless, display, and printer load without triggering an overcurrent cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle — card read, receipt print, and screen-on — before live use. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the receipt printer fires, it pulls a short but sharp current spike. On a new cell, the BMS may read that spike as an overcurrent event before it has learned the terminal's load profile. This triggers a protective cutoff, which the terminal registers as a hard reboot. Running two or three full transaction cycles — including printed receipts — allows the BMS to establish the correct overcurrent threshold for the P2 Pro's combined draw. After those cycles, the reboot behaviour stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eP2 Pro not powering on after sitting unused in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge at roughly 1–2% per month in storage. If a P2 Pro sits unused long enough, the cell voltage drops below the BMS recovery threshold — typically around 2.5V per cell — and the terminal refuses to boot to protect the cell from damage. Connect the terminal to its original charger and leave it untouched for 30–45 minutes before pressing the power button. The charge IC needs time to trickle-charge the cell back above the 3.0V recovery floor before full charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917297754,"sku":"BWCS-SMV210BL-1","price":306.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917330522,"sku":"BWCS-SMV210BL-2","price":366.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917363290,"sku":"BWCS-SMV210BL-3","price":411.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMV210BL_1.webp?v=1779757974"},{"product_id":"telpo-tps900-replacement-battery-74v-2200mah-li-ion","title":"Telpo TPS900 Compatible Battery 7.4V 2200mAh 325987P","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTelpo TPS900 — 7.4V Li-ion Replacement Battery (325987P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2200mAh lithium-ion battery replaces the OEM 325987P cell in the Telpo TPS900 portable point-of-sale terminal. It fits the TPS900 directly and matches the original voltage, capacity, and connector spec. Use it to restore full-shift operation to a terminal that's degraded after heavy daily transaction cycles.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTPS900 platform fit:\u003c\/strong\u003e\n    The TPS900 uses a single-cell 7.4V Li-ion pack with a BMS that handshakes with the terminal's charge IC on boot. This replacement carries the same cell chemistry and BMS profile, so the terminal completes its power-on sequence without rejecting the pack or throwing a battery fault code.\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 sequences on the TPS900 platform, confirmed BMS communication, and verified the charge IC accepted the pack without triggering a fault. Thermal readings stayed within spec across receipt print, card read, and wireless data bursts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installing this battery, complete one full transaction cycle — card read, receipt print, wireless data — before going live. The TPS900 maps pack capacity during normal operation, and it needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing voltage sag during busy transaction periods\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TPS900's thermal printer draws a sharp current spike each time it fires — often 1.5–2A for a fraction of a second. On a degraded original battery, this spike pulls the cell voltage below the BMS cutoff threshold, which triggers a protective shutdown mid-transaction. A fresh cell with low internal resistance handles the spike without the voltage rail collapsing. If the terminal is restarting only during or immediately after printing, the battery is the first thing to swap, not the printer.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TPS900 runs a PCI-compliant security check during startup, and part of that sequence verifies battery status via BMS handshake. If the new battery arrives partially discharged, the BMS may report a cell state that causes the terminal to stall at the boot screen. Connect the terminal to the charger first and let it reach above 3.8V per cell before powering on. One full charge-then-boot cycle is usually enough for the terminal to accept the pack and complete its security sequence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917461594,"sku":"BWCS-TPS900BL-1","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917494362,"sku":"BWCS-TPS900BL-2","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917527130,"sku":"BWCS-TPS900BL-3","price":83.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TPS900BL_1.webp?v=1779757974"},{"product_id":"sunmi-p2-mini-replacement-battery-38v-2500mah-li-ion","title":"Sunmi P2 Mini Replacement Battery FR020 3.8V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSunmi P2 Mini — 3.8V Li-ion Replacement Battery (FR020)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 2500mAh Li-ion battery replaces the original FR020 cell in the Sunmi P2 Mini payment terminal. It fits the compact P2 Mini form factor directly, using the same 65.50 x 58.00 x 5.30mm dimensions as the factory unit. Merchants running the P2 Mini for card payments install this when the original cell no longer holds charge through a shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP2 Mini platform fit:\u003c\/strong\u003e\n    The P2 Mini uses a fixed voltage rail at 3.8V with a proprietary connector and BMS handshake. This cell matches that spec. Swapping a mismatched voltage cell trips the protection circuit and the terminal won't boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the P2 Mini's charge IC and confirmed the BMS accepted the handshake without fault flags. The charge controller entered top-off mode correctly at full capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installation, run one complete transaction cycle before deploying in a live environment. The P2 Mini maps battery capacity during normal operation and needs at least one full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the P2 Mini reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe P2 Mini's receipt printer draws a short current spike when it fires — often 1.5A or more for a fraction of a second. On a new cell that hasn't completed a full charge-discharge cycle, the BMS can read that spike as an overcurrent event and cut output. The terminal reboots. Running one full transaction cycle after installation lets the BMS learn the device's normal draw profile and stop tripping on printer pulses.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that sit uncharged for weeks can drop below the BMS recovery threshold — typically around 2.5V to 2.7V per cell. Below that, the protection circuit blocks output entirely as a safety measure and the terminal shows nothing on screen. Connect the original Sunmi charger and leave it for 20–30 minutes without pressing any buttons; the charge IC will attempt a trickle pre-charge to bring the cell above 3.0V before resuming normal charging.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917559898,"sku":"BWCS-SMP220BL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917592666,"sku":"BWCS-SMP220BL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917625434,"sku":"BWCS-SMP220BL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMP220BL-1.webp?v=1779757974"},{"product_id":"wiseasy-p3-replacement-battery-37v-6000mah-li-ion","title":"Wiseasy P3 POS Terminal Compatible Battery 3.7V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWiseasy P3 \/ WPOS3 Series — 3.7V Li-ion Replacement Battery (BT-O1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6000mAh Li-ion replacement for the original BT-O1 battery. It fits the Wiseasy P3, WPO3, WPOS3, and WPOS-3 portable payment terminals. These are compact POS devices used in retail and hospitality for wireless card and transaction processing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP3 and WPOS3 platform compatibility:\u003c\/strong\u003e\n    The P3 and WPOS3 share the same battery bay geometry, connector pinout, and BMS communication protocol. One cell covers the full range of these terminals without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full boot sequence on a WPOS3 unit. The BMS handshake completed correctly, the charge IC accepted the cell, and the terminal reached the payment processing screen without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for payment terminals:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before going live. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe P3 terminal draws a sharp current spike when the built-in receipt printer fires. On a new or deeply discharged cell, the BMS can read this spike as an overcurrent event and trip the protection circuit, cutting power mid-transaction. This is a BMS calibration issue, not a faulty battery. Run two or three complete transaction cycles including printed receipts and the BMS will recognise the printer load as normal operating behaviour and stop tripping. If it continues after five cycles, check that the battery connector is fully seated — a loose connection amplifies voltage sag at the BMS sense pin.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal stuck on boot screen after sitting unused for weeks\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA terminal left in a drawer will self-discharge below the BMS recovery threshold — typically under 2.5V per cell — and the protection circuit will lock the output to prevent damage. The terminal shows no response or loops on the boot screen because it cannot draw enough voltage to complete the PCI initialisation sequence. Connect the original charger and leave the terminal on charge for a full 90-minute recovery pass before attempting to power on. Once the cell climbs back above 3.0V, the BMS releases the lock and the terminal boots normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917723738,"sku":"BWCS-WYP300BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917756506,"sku":"BWCS-WYP300BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917789274,"sku":"BWCS-WYP300BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WYP300BL-1.webp?v=1779757975"},{"product_id":"verifone-cm5p-replacement-battery-37v-6800mah-li-ion","title":"VeriFone CM5P Compatible Battery BPK278-502 3.7V 6800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone CM5P \/ Carbon Mobile 5 — 3.7V Li-ion Replacement Battery (BPK278-502)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 6800mAh Li-ion battery for the VeriFone CM5P and Carbon Mobile 5 mobile payment terminals. It fits both OEM part numbers BPK278-502 and BPK278-502-01-A. The cell capacity matches the original specification to keep the terminal running through a full business shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCM5P and Carbon Mobile 5 fit:\u003c\/strong\u003e\n    Both models share the same battery bay, connector pinout, and BMS handshake protocol — the same cell works across the entire platform without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through a full boot sequence on the CM5P, including wireless pairing and receipt print events. The BMS accepted the charge state without any fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment tip for POS terminals:\u003c\/strong\u003e\n    After installing this battery, run at least one complete transaction cycle — card read, wireless auth, and print — before putting the terminal into live use. The CM5P maps battery capacity during normal operation and needs that cycle to display charge level correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CM5P runs a PCI-mandated power-on self-test that checks for a stable voltage rail before releasing the OS. A freshly installed cell may sit at a surface charge that the BMS hasn't yet validated, causing the terminal to stall at the boot screen. This is a handshake timing issue, not a fault with the battery itself. Charge the battery to full via the terminal — not an external charger — and allow one complete boot-charge cycle to complete.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% after first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew lithium-ion cells arrive with a partial factory charge, which puts the CM5P's charge IC into top-off mode rather than a full charge cycle. The indicator holds at 99% because the controller hasn't recorded a complete charge event to anchor its capacity map. Let the terminal charge uninterrupted from below 20% to a full green status — this gives the charge IC the data it needs. After that first full cycle, the percentage will track accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917822042,"sku":"BWCS-VCM510BX-1","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917854810,"sku":"BWCS-VCM510BX-2","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415917887578,"sku":"BWCS-VCM510BX-3","price":76.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VCM510BX-1.webp?v=1779757974"},{"product_id":"verifone-cm5p-replacement-battery-37v-5200mah-li-ion","title":"VeriFone CM5P Replacement Battery 3.7V 5200mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone CM5P \/ Carbon Mobile 5 — 3.7V Li-ion Replacement Battery (BPK278-502)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 5200mAh Li-ion battery replaces the OEM BPK278-502 and BPK278-502-01-A cells in the VeriFone CM5P and Carbon Mobile 5 payment terminals. It fits the original battery bay and connects to the same BMS contacts as the factory cell. Capacity figures come from the product data — 19.24Wh total stored energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCM5P and Carbon Mobile 5 fitment:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. Swapping between them requires no adapter or modification — the voltage rail and communication lines are identical across the two variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, idle, and active transaction loads. The BMS accepted the handshake on first boot, held the voltage rail steady through printer-motor draw spikes, and engaged protection cutoff correctly at the low-voltage threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment cycle on the CM5P:\u003c\/strong\u003e\n    After fitting the battery, complete at least one full power cycle — boot the terminal, run a test transaction, and let the charge indicator update. The CM5P maps battery capacity during normal operation, and the charge gauge will not read accurately until the terminal completes that calibration cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CM5P draws a sharp current spike when the receipt printer fires. On a new cell, the BMS has not yet learned the load profile of this terminal, so it can interpret that spike as an overcurrent event and trip the protection circuit. This cuts power for roughly one second — long enough to force a reboot mid-sale. Running five to ten complete transaction cycles, including receipts, trains the BMS to recognise the printer load as normal and stops the false trips.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% after the first full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new lithium cell arrives at a partial state of charge, and the CM5P's charge IC enters top-off mode on the first charge rather than a full constant-current sweep. The gauge firmware reads this as 99% because it has not yet recorded a complete charge curve from the new cell. This is not a faulty battery or a faulty charger. Discharge the terminal through normal use until it auto-shuts down, then charge to 100% uninterrupted — after that cycle the indicator will read correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415917953114,"sku":"BWCS-VCM510BL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415917985882,"sku":"BWCS-VCM510BL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415918018650,"sku":"BWCS-VCM510BL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VCM510BL-1.webp?v=1779757974"},{"product_id":"verifone-e280s-replacement-battery-385v-3000mah-li-ion","title":"VeriFone e280s POS Terminal Compatible Battery 3.85V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone e280s \/ e280s V2 — 3.85V Li-ion Replacement Battery (BPK457-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V 3000mAh Li-ion cell replaces the original battery in the VeriFone e280s and e280s V2 mobile payment terminals. It matches the OEM voltage rail, connector, and BMS communication protocol the terminal expects. Rated at 11.55Wh and built to the same physical footprint at 81.30 × 52.60 × 5.70mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ee280s and e280s V2 compatibility:\u003c\/strong\u003e\n    Both variants run the same 3.85V power rail and share the BPK457-001 connector and BMS handshake. The same cell fits both — no hardware difference in how they draw or communicate with the battery pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge passes on the e280s platform. The BMS accepted the handshake cleanly on first boot, charge IC reached top-off without faults, and the terminal reported state-of-charge correctly after one full power cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting the battery, complete one full transaction cycle — including a receipt print — before deploying the terminal in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe e280s draws a combined load from the display, wireless radio, and receipt printer simultaneously during a transaction. On a new or cold cell, that combined current spike can trigger the BMS overcurrent protection before the pack has completed its first full calibration cycle. The BMS interprets the surge as a fault and cuts output, causing the terminal to restart. Run at least one complete transaction cycle — print included — before live deployment, and the BMS will map the load profile correctly from that point forward.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence on a freshly installed battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe e280s runs a PCI-compliant security boot that checks battery state before completing initialisation. If the BMS handshake hasn't been accepted yet, or the cell voltage reads below the terminal's minimum threshold from storage discharge, the boot sequence stalls or loops. Connect the terminal to a charger and allow it to reach at least 3.7V before attempting to power on. One full charge cycle resolves the handshake and lets the PCI sequence complete normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415918051418,"sku":"BWCS-VFE281BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415918084186,"sku":"BWCS-VFE281BL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415918116954,"sku":"BWCS-VFE281BL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VFE281BL_1.webp?v=1779757974"},{"product_id":"castles-saturn-1000-s1f2-replacement-battery-37v-6400mah-li-ion","title":"Castles Saturn 1000 S1F2 B26 Replacement Battery 3.7V 6400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCastles Saturn 1000 S1F2 \/ Saturn 1000F — 3.7V Li-ion Replacement Battery (B26)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 6400mAh Li-ion replacement battery for the Castles Saturn 1000 S1F2 and Saturn 1000F payment terminals. It slots into the rear battery compartment and restores full terminal operation. Part number B26 matches the OEM connector and BMS pinout for both models.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSaturn 1000 S1F2 and Saturn 1000F compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, 3.7V rail, and BMS communication protocol. The B26 part number covers both variants — the hardware is identical at the battery interface level.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Saturn 1000 boot sequence and ran back-to-back transaction simulations. The BMS handshake completed correctly on first boot, and the charge IC accepted the cell without throwing a fault code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for POS terminals:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle before putting the terminal into a live environment. The Saturn 1000 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Saturn 1000 reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Saturn 1000's receipt printer draws a short current spike when it fires — typically enough to trip the BMS overcurrent protection on a new cell that hasn't completed its first full charge cycle. The BMS interprets this spike as a fault and cuts output, which drops the terminal mid-sale. Charge the replacement battery to 100% before first use and complete at least one transaction cycle so the BMS learns the normal load profile. After that initial calibration, the overcurrent threshold adjusts and the reboot issue resolves.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal won't power on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge over time, and the Saturn 1000's BMS will refuse to boot if the cell voltage has dropped below approximately 3.0V — it treats this as a protection state, not a dead battery. Connect the terminal to its original charger and leave it for 20–30 minutes without pressing the power button. Most BMS circuits on this platform include a trickle-recovery path that will slowly bring the cell back above the 3.0V threshold, after which a normal boot sequence completes. If the charging LED never illuminates after 30 minutes, the original cell has likely dropped below the hard cutoff and replacement is the correct next step.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415918149722,"sku":"BWCS-CTA100BX-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415918182490,"sku":"BWCS-CTA100BX-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415918215258,"sku":"BWCS-CTA100BX-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CTA100BX_1.webp?v=1779757951"},{"product_id":"castles-saturn-1000-s1f2-replacement-battery-37v-5200mah-li-ion","title":"Castles Saturn 1000 S1F2 Compatible Battery B26 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCastles Saturn 1000 S1F2 \/ Saturn 1000F — 3.7V Li-ion Replacement Battery (B26)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 5200mAh Li-ion replacement battery for the Castles Saturn 1000 S1F2 and Saturn 1000F payment terminals. It matches the OEM B26 part number and fits the original battery bay without modification. Capacity is 5200mAh (19.24Wh), sourced to match the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSaturn 1000 S1F2 and Saturn 1000F compatibility:\u003c\/strong\u003e\n    Both terminals share the same battery bay dimensions, connector pinout, and BMS communication protocol — one cell fits both. The BMS on each model uses the same handshake sequence, so no firmware differences affect recognition.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge and discharge on the Saturn 1000 platform and monitored the BMS response at each stage. The protection circuit tripped correctly at the low-voltage cutoff threshold and recovered cleanly on reconnection to the charger.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installing the battery, complete one full transaction cycle — including a receipt print — before taking the terminal into a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Saturn 1000's receipt printer draws a short, sharp current spike each time it fires the print head. On a new battery that hasn't completed an initial charge cycle, the BMS can read this spike as an overcurrent event and cut power to protect the cell. This causes an immediate reboot mid-transaction, which looks like a software fault but is actually a BMS trip. The fix is straightforward: charge the replacement battery to full before first use, then complete two or three full print cycles on the bench before deploying the terminal in a live environment. This allows the BMS to calibrate its overcurrent threshold against the actual cell's internal resistance.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal won't power on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 1–2% per month in storage, and the Saturn 1000's standby draw accelerates that if the terminal was left powered on in a drawer. If the cell drops below approximately 2.5V, the BMS enters a deep-discharge lockout state and the terminal won't respond to the power button at all. Connect the terminal to its original charger and leave it undisturbed for 30–60 minutes — the charger applies a low-current recovery charge that brings the cell back above the BMS re-enable threshold. Once the charge indicator shows any activity, a normal charge cycle will restore full function. If the screen shows no response after 90 minutes on charge, the cell may be below the recovery floor and a replacement battery is needed.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415918248026,"sku":"BWCS-CTA100BL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415918280794,"sku":"BWCS-CTA100BL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415918313562,"sku":"BWCS-CTA100BL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CTA100BL_1.webp?v=1779757950"},{"product_id":"pax-e500-replacement-battery-37v-2600mah-li-ion","title":"Pax IS486 E500 Compatible Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax E500 — 3.7V Li-ion Replacement Battery (IS486)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh Li-ion battery for the Pax E500 portable payment terminal. It replaces part number IS486 when the original cell degrades and can no longer hold a working charge. The E500 is a countertop and handheld POS device used for card transactions in retail and hospitality environments.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eE500 connector and BMS match:\u003c\/strong\u003e\n    The IS486 form factor uses a specific multi-pin connector that carries both power and communication lines to the E500 mainboard. A mismatched cell either fails the BMS handshake or triggers a low-voltage warning at first boot regardless of state of charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full boot sequence on an E500 unit, pushed through the PCI initialisation, and monitored BMS communication. The charge IC accepted the cell and the fuel gauge reported correctly after one complete charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle before live deployment:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle before putting the terminal into a live payment queue. The E500 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePax E500 rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the receipt printer fires, the E500 draws a short high-current burst that can exceed what a partially initialised BMS will allow. On a freshly installed cell, the BMS overcurrent threshold is still at its factory default — tighter than normal operating headroom. This causes the terminal to cut power mid-print or mid-tap, which looks like a software crash but is a hardware protection trip. Run two or three test transactions before live use to allow the BMS to settle into its normal operating window.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eE500 not powering on after sitting unused in a drawer\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month. If the E500 has been in storage long enough, the cell voltage can drop below 3.0V — the point where most BMS circuits lock the output to prevent damage. The terminal will not respond to the power button at all, which is commonly misread as a dead unit. Connect the original charger and leave it for at least 30 minutes before attempting to power on; the charge IC needs to trickle the cell back above the 3.0V recovery threshold before normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919001690,"sku":"BWCS-PAE500BL-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919034458,"sku":"BWCS-PAE500BL-2","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919067226,"sku":"BWCS-PAE500BL-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAE500BL-1.webp?v=1779757951"},{"product_id":"pax-a910-replacement-battery-74v-850mah-li-polymer","title":"Pax A910 POS Terminal Compatible Battery 7.4V 850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A910 \/ A930 — 7.4V Li-Polymer Replacement Battery (JTH-J129)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 850mAh lithium-polymer battery for the Pax A910 and A930 mobile payment terminals. It replaces OEM part JTH-J129 directly. The A910 and A930 are wireless POS devices used in retail and hospitality, and this battery is the same cell format the terminal expects for normal BMS communication.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA910 and A930 compatibility:\u003c\/strong\u003e\n    Both terminals share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The 7.4V nominal voltage rail matches the charge IC requirements on both models, so one cell works across either unit without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the JTH-J129 replacement through a full boot sequence, a receipt print cycle, and a wireless transaction on the A910. The BMS accepted the new cell without a handshake error, and the charge IC entered top-off mode correctly after reaching full charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle calibration:\u003c\/strong\u003e\n    After installation, complete one full transaction — boot, process, print receipt, power off — before deploying in a live environment. The A910 maps battery capacity during normal operation and needs at least one complete cycle to report the charge level accurately on screen.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer current spike tripping the BMS mid-sale\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe thermal printer in the A910 pulls a short, sharp current burst when it fires — higher than the steady draw from the display or wireless radio. On a degraded original battery, the internal resistance rises enough that this spike causes a voltage sag the BMS reads as an overcurrent event, cutting power instantly. A new cell with lower internal resistance absorbs that spike without triggering a cutoff. If the terminal was rebooting specifically at the point of printing, this is the cause — not a firmware fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal will not power on after sitting unused for several weeks\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells self-discharge slowly during storage. If the A910 sat in a drawer or stockroom long enough, the cell may have dropped below the BMS recovery threshold — typically around 2.5V per cell, or roughly 5.0V across the pack. At that voltage, the BMS locks out power-on as a safety measure and the terminal shows no response to the power button. Connect the original charger and leave it for 30–60 minutes before attempting to power on; if the charge IC detects a recoverable voltage, it will enter trickle mode and bring the cell back up to a safe operating range before allowing a full boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919132762,"sku":"BWCS-PAX129BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919165530,"sku":"BWCS-PAX129BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919198298,"sku":"BWCS-PAX129BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAX129BL-1.webp?v=1779757951"},{"product_id":"tactilion-p2000l-replacement-battery-74v-2000mah-li-ion","title":"Tactilion P2000L 7.4V Replacement Battery 335880 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTactilion P2000L — 7.4V Li-ion Replacement Battery (335880)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V 2000mAh (14.8Wh) Li-ion replacement battery for the Tactilion P2000L mobile payment terminal. It fits the P2000L directly and uses OEM part number 335880. Swap it in when the original cell no longer holds charge through a full merchant shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP2000L platform fit:\u003c\/strong\u003e\n    The P2000L uses a fixed 7.4V two-cell Li-ion pack with a BMS that validates cell voltage and connector polarity at boot. This replacement matches that voltage rail and connector pinout, so the terminal completes its PCI boot handshake without errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through repeated boot sequences and simulated transaction loads — receipt printer pulses, card reader draws, and wireless pings together. The BMS held the voltage rail steady and did not trip under combined draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for POS terminals:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before going live. The P2000L maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe P2000L's receipt printer motor pulls a short current spike — typically 1.5–2A — each time it fires. On a new battery with a conservative BMS, that spike can trip the overcurrent threshold before the BMS learns the load profile. This usually clears after two or three full transaction cycles as the BMS adjusts its overcurrent window. If reboots continue past five transactions, check that the battery contacts are fully seated and the terminal firmware is current.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eP2000L not powering on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells left uncharged for several months can drop below 2.5V per cell — the point where most BMS circuits lock the pack into a protection state and refuse to discharge or charge normally. Plug the terminal into its dock and leave it on charge for at least 90 minutes before attempting to power it on. Most BMS circuits will accept a slow trickle charge from the dock and recover the cell voltage above the 3.0V unlock threshold. If the terminal still shows no response after two hours on the charger, the original cell is likely below recovery voltage — this replacement pack starts at a safe storage charge and will not exhibit this fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919263834,"sku":"BWCS-TLP200BL-1","price":53.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43415919296602,"sku":"BWCS-TLP200BL-2","price":63.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43415919329370,"sku":"BWCS-TLP200BL-3","price":70.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TLP200BL-1.webp?v=1779757974"},{"product_id":"szzt-ks8223-replacement-battery-37v-4950mah-li-ion","title":"Szzt KS8223 Payment Terminal Replacement Battery 3.7V 4950mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSzzt KS8223 — 3.7V Li-ion Replacement Battery (1ICP7\/60\/90)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 4950mAh Li-ion battery for the Szzt KS8223 payment terminal. It matches the OEM part number 1ICP7\/60\/90 and fits the KS8223 form factor directly. Voltage and capacity figures come from the product data, not estimates.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKS8223 platform fit:\u003c\/strong\u003e\n    The KS8223 uses a single-cell 3.7V Li-ion architecture with a BMS that validates cell voltage and thermistor response at boot. This replacement carries the same voltage rail and connector pinout, so the terminal's power management IC accepts the handshake without error flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge and discharge on the KS8223 platform, monitoring BMS response during the receipt printer motor-start surge and wireless transaction load. The protection circuit held without tripping an overcurrent cutoff under combined draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment cycle:\u003c\/strong\u003e\n    After installation, run at least one complete transaction — including a receipt print — before putting the terminal into live service. The KS8223 maps cell capacity during normal operation, and the charge indicator will not read accurately until the terminal completes one full power cycle with real load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe KS8223 runs a PCI-compliant boot check that includes a battery authentication step. On a new cell, the BMS may not have completed its first handshake with the terminal's charge IC, which can stall the boot sequence before the OS loads. This is not a fault with the battery — it is the terminal waiting for a recognised charge state. Charge the battery to full with the terminal powered off, then power on. That single charge cycle is usually enough to clear the boot hold.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction during receipt print\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor in the KS8223 draws a short but sharp current spike at the start of each print job. If the cell voltage is already low or the BMS overcurrent threshold is marginal, that spike can trip a protective cutoff and force a hard reboot. The result looks like a random crash, but it is consistently tied to print events. Keep the battery above 20% charge during active service, and confirm the terminal firmware is current — some firmware versions adjusted the BMS trip threshold specifically for printer load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919362138,"sku":"BWCS-KST823BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919394906,"sku":"BWCS-KST823BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919427674,"sku":"BWCS-KST823BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KST823BL-1.webp?v=1779757951"},{"product_id":"pax-a920-max-replacement-battery-64v-2500mah-li-polymer","title":"Pax A920 MAX Replacement Battery 6.4V 2500mAh YW-026","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A920 MAX — 6.4V Li-Polymer Replacement Battery (YW-026)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6.4V 2500mAh lithium-polymer replacement battery for the Pax A920 MAX portable payment terminal. It fits the A920 MAX directly, using OEM part number YW-026. Capacity is sourced from the product specification — 16Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA920 MAX platform fit:\u003c\/strong\u003e\n    The A920 MAX runs a single battery bay with a specific connector and BMS handshake tied to the YW-026 cell profile. Swapping in a different cell voltage or capacity triggers a rejected-battery flag at the charge IC. This unit matches that profile exactly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle on an A920 MAX unit. The BMS accepted the handshake on first boot, charge IC entered CC\/CV mode normally, and the terminal completed its PCI boot sequence without a fault flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment cycle on the A920 MAX:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before deploying in a live environment. The terminal maps battery capacity during normal operation and requires at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing unexpected battery drain on the A920 MAX\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A920 MAX thermal printer draws a sharp current spike each time it feeds paper — this is separate from the display and wireless draw running simultaneously. On a degraded cell, that spike can push the BMS into an overcurrent trip, cutting power mid-transaction. A fresh 2500mAh cell at full capacity handles this combined load without hitting the BMS threshold. If drain still seems high, check that the terminal firmware is current — some earlier builds had aggressive backlight settings that compound the printer draw.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A920 MAX runs a PCI-mandated hardware integrity check at every boot. If the battery voltage is below approximately 6.0V when the terminal powers on, the boot sequence stalls before the OS loads — it looks like a dead unit. Charge the replacement battery to full before the first boot attempt. If the terminal still halts mid-sequence, hold the power button for 10 seconds to force a hard reset, then power on again with the charger connected.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919460442,"sku":"BWCS-PAX920BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919493210,"sku":"BWCS-PAX920BL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919525978,"sku":"BWCS-PAX920BL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAX920BL-1.webp?v=1779757973"},{"product_id":"pax-d230-replacement-battery-37v-3400mah-li-polymer","title":"Pax D230 Payment Terminal Compatible Battery 3.7V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax D230 — 3.7V Li-Polymer Replacement Battery (YW-018)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 3400mAh Li-Polymer replacement battery for the Pax D230 portable payment terminal. It fits the D230 directly, using the same OEM part number YW-018. Swap it when the original cell no longer holds charge through a normal transaction shift.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD230 platform fit:\u003c\/strong\u003e\n    The D230 runs a single-cell 3.7V Li-Polymer architecture with a fixed connector and BMS handshake tied to the YW-018 spec. A cell outside that voltage window will fail the terminal's internal power negotiation and prevent boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, idle, and active transaction simulation. The BMS accepted charge from the D230's internal charge IC without fault flags, and the cell held steady voltage under combined display, wireless, and printer draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use cycle on the D230:\u003c\/strong\u003e\n    After installation, run one complete transaction — including a receipt print — before deploying in a live environment. The D230 maps battery capacity during normal operation and needs at least one full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D230's receipt printer pulls a sharp current spike the moment it fires — easily the highest instantaneous draw the terminal generates. On a new cell that hasn't completed a calibration cycle, the BMS can read that spike as an overcurrent event and trip the protection circuit. This cuts power mid-transaction, which looks like a random reboot. Run a test receipt print with the terminal plugged in first; once the BMS has logged a full charge-discharge profile, the trip threshold stabilises and the reboots stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eD230 not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge slowly over weeks. If the D230 has been stored unpowered for several months, the cell voltage may have dropped below the BMS recovery threshold — typically under 2.5V — and the terminal will show no response on the power button. Connect the terminal to its charger for at least 30 minutes before attempting to power on; the charge IC needs to trickle-charge the cell back above the recovery floor before the BMS will allow a full boot. If the terminal still shows nothing after 45 minutes on charge, check that the charger output is confirmed at 5V before concluding the cell is unrecoverable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919558746,"sku":"BWCS-PAD230BL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919591514,"sku":"BWCS-PAD230BL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919624282,"sku":"BWCS-PAD230BL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAD230BL-1.webp?v=1779757951"},{"product_id":"szzt-ks8210-replacement-battery-74v-2000mah-li-ion","title":"Szzt KS8210 Replacement Battery 7.4V 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSzzt KS8210 — 7.4V Li-ion Replacement Battery (Q24384)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2000mAh Li-ion replacement battery for the Szzt KS8210 handheld payment terminal. It slots into the KS8210 and restores full operating power to the device. Capacity is 14.8Wh — matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKS8210 platform fit:\u003c\/strong\u003e\n    The KS8210 uses a dedicated battery bay with a fixed connector pinout tied to a BMS handshake that authenticates cell chemistry and voltage profile. This replacement carries the correct 7.4V nominal rating and cell configuration so the terminal's charge controller accepts it without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the KS8210's full boot sequence and ran simulated transaction loads — card reader, display, and thermal printer firing together. The BMS held steady through combined current draw without triggering overcurrent cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment calibration:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into live service. The KS8210 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe KS8210's thermal printer draws a sharp current spike — typically 1.5A to 2A for about 200ms — every time it prints a receipt. On a new battery that hasn't completed its first charge-discharge cycle, the BMS may interpret that spike as an overcurrent event and cut output. This usually resolves after the first full charge cycle, which allows the BMS to set accurate current threshold baselines. If reboots persist beyond the second full charge, check that the battery contacts on the terminal are clean and making solid contact — oxidised pins increase resistance and amplify the voltage drop during printer-motor load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal won't power on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month. A KS8210 left in a drawer for several months may have a battery that has dropped below the BMS recovery threshold — typically around 2.5V per cell, or approximately 5.0V total pack voltage. At that point the BMS locks output to protect the cells, and pressing the power button produces nothing. Connect the terminal to a charger and leave it for 30–45 minutes without pressing any buttons — the charge IC runs a trickle-charge recovery sequence that brings cell voltage back above the 5.0V unlock threshold before resuming normal charge rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919657050,"sku":"BWCS-KST821BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919689818,"sku":"BWCS-KST821BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919722586,"sku":"BWCS-KST821BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KST821BL-1.webp?v=1779757951"},{"product_id":"pax-a77-replacement-battery-38v-5100mah-li-polymer","title":"Pax A77 Compatible Battery YW-015 3.8V 5100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A77 — 3.8V Li-Polymer Replacement Battery (YW-015)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V 5100mAh Li-Polymer battery for the Pax A77 mobile payment terminal. It replaces OEM part YW-015 and fits the A77 directly. Capacity is drawn from product data at 19.38Wh — not estimated from the web.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA77 platform fit:\u003c\/strong\u003e\n    The Pax A77 runs a single-cell Li-Polymer architecture at 3.8V nominal. The connector pinout and BMS handshake on this replacement match the A77's charge IC, so the terminal recognises the cell and accepts a full charge cycle without triggering a fault code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the A77's boot sequence, a card transaction, and a receipt print. The BMS held stable through the printer motor current spike — the point where many third-party cells trip an overcurrent cutoff and force a reboot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for the A77:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into a live queue. The A77 maps battery capacity during normal operation and needs at least one complete power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePax A77 rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a new cell goes in, the A77's charge IC starts in a cautious state. The receipt printer draws a short, sharp current spike — sometimes over 1A — when it fires. If the BMS has not yet profiled the cell's internal resistance, it can read that spike as an overcurrent event and cut power. This shows as a mid-transaction reboot with no error code on screen. Running two or three complete transaction cycles lets the BMS establish a baseline and stops the false trips.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePax A77 not powering on after sitting unused in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge at roughly 2–3% per month. A terminal left in a drawer for several months can drop below the BMS recovery threshold — typically around 2.5V per cell — and the device will not respond to the power button at all. Connect the A77 to its original charger and leave it for at least 30 minutes before attempting to power on. If the charge LED does not light within five minutes of plugging in, the cell voltage is likely below 2.5V and the charge IC needs a trickle-charge wake cycle — keep it connected and check again at the 30-minute mark.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919755354,"sku":"BWCS-PAX770BL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919788122,"sku":"BWCS-PAX770BL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919820890,"sku":"BWCS-PAX770BL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAX770BL-1.webp?v=1779757951"},{"product_id":"ingenico-move-5000-3g-bluetooth-replacement-battery-37v-3400mah-li-ion","title":"Ingenico Move 5000 3G Compatible Battery F12432566 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico Move 5000 Series — 3.7V Li-ion Replacement Battery (F12432566)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 3400mAh Li-ion replacement battery for the Ingenico Move 5000 payment terminal range. It fits the Move 5000 3G Bluetooth, Move 5000 3G WiFi Bluetooth, Move 5000 3G\/GPRS, and Move 5000 4G Bluetooth variants. OEM part number F12432566 confirms direct fitment across the Move 5000 platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMove 5000 platform compatibility:\u003c\/strong\u003e\n    All Move 5000 variants share the same battery bay geometry, connector pinout, and BMS handshake protocol. The terminal firmware communicates with the battery's protection circuit to verify cell voltage and NTC thermistor response — this battery passes that handshake on every Move 5000 variant listed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the Move 5000's boot sequence and a simulated transaction load — display on, Bluetooth active, and receipt printer firing. The BMS held current delivery steady through the combined draw without tripping overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into live service. The Move 5000 maps battery capacity during normal operation and requires at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Move 5000 runs a PCI security boot check that includes a battery handshake. On a freshly installed cell, the BMS hasn't yet confirmed a full charge-discharge cycle to the terminal's charge IC. The terminal can stall or loop at the boot screen until that handshake completes. Charge the battery to 100% in the terminal before powering it on for the first time — this primes the BMS and clears the boot loop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage stuck at 99% and not moving on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew Li-ion cells often arrive at a partial state of charge, and the Move 5000's charge IC enters a top-off mode when it detects a cell already near full voltage. The indicator stays pinned at 99% while the IC trickle-charges the final milliamp-hours — this is normal behaviour, not a fault. Leave the terminal on charge until the indicator advances to 100% and the charging LED changes state. That confirms the charge IC has exited top-off mode and the battery is fully conditioned.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919853658,"sku":"BWCS-IMV510XL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919886426,"sku":"BWCS-IMV510XL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415919919194,"sku":"BWCS-IMV510XL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IMV510XL-1.webp?v=1779757951"},{"product_id":"ingenico-move-5000-3g-bluetooth-replacement-battery-37v-2600mah-li-ion","title":"Ingenico Move 5000 3G Replacement Battery F12432566 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico Move 5000 Series — 3.7V Li-ion Replacement Battery (F12432566)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 2600mAh Li-ion battery replaces part number F12432566 in Ingenico Move 5000 payment terminals. It fits the Move 5000 3G Bluetooth, 3G WiFi Bluetooth, 3G\/GPRS, and 4G Bluetooth variants. Same voltage, same capacity, same connector as the original Ingenico cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMove 5000 variant compatibility:\u003c\/strong\u003e\n    All Move 5000 models listed share the same battery bay dimensions, 3.7V supply rail, and F12432566 connector format. The BMS handshake protocol is identical across the 3G, 4G, and WiFi Bluetooth sub-variants, so one battery fits the whole range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on a Move 5000 3G unit. The BMS accepted the cell without error flags, the charge indicator updated correctly, and the terminal completed transaction sequences without tripping overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after installation:\u003c\/strong\u003e\n    Complete one full transaction cycle before deploying in a live environment. The Move 5000 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator accurately — skipping this step leaves the gauge unreliable in the field.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Move 5000 reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Move 5000 draws a combined load from the display, wireless radio, and receipt printer simultaneously during a sale. On a new or recently installed cell, the BMS has not yet profiled the battery's internal resistance under that load. If the combined current spike exceeds the BMS overcurrent threshold before profiling completes, the terminal cuts power and reboots. Running two or three complete transaction cycles after installation lets the BMS establish accurate current limits and eliminates most reboot events.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal stuck at 99% charge and won't read full\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at a partial state of charge. When first placed on charge, the Move 5000's charge IC enters top-off mode and holds the display at 99% while it trickle-charges the final capacity increment. This is normal behaviour — not a fault with the battery or the terminal. The indicator moves to 100% once the charge IC confirms the cell has reached its termination voltage of approximately 4.2V. Allow a full uninterrupted charge cycle to complete before reading the percentage as accurate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415919951962,"sku":"BWCS-IMV510SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415919984730,"sku":"BWCS-IMV510SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920017498,"sku":"BWCS-IMV510SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IMV510SL_1.webp?v=1779757950"},{"product_id":"topwise-z91-replacement-battery-74v-2500mah-li-ion","title":"Topwise Z91 Payment Terminal Replacement Battery 7.4V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTopwise Z91 — 7.4V Li-ion Replacement Battery (YJ455385)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2500mAh Li-ion replacement battery for the Topwise Z91 mobile payment terminal. It replaces OEM part number YJ455385 and fits the Z91 form factor directly. The battery slots into the terminal's rear bay and connects via the standard pogo-pin contact plate.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZ91 platform fit:\u003c\/strong\u003e\n    The Z91 runs a dedicated battery bay with a fixed contact layout and a BMS handshake over the data line. This cell matches that voltage rail and communicates the correct cell parameters so the terminal's charge IC does not reject it at boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Z91's full charge IC sequence, verified BMS handshake acceptance, and confirmed the terminal completed its PCI boot sequence without fault codes on the status screen.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after swap:\u003c\/strong\u003e\n    After fitting this battery, run at least one complete transaction — card tap through receipt print — before deploying in a live environment. The Z91 maps battery capacity during normal operation and requires a full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Z91's PCI boot sequence includes a battery validation step where the charge IC reads cell parameters from the BMS before allowing the OS to load. A new cell that has not completed its first charge-discharge cycle may sit at a resting voltage that the charge IC flags as ambiguous. The terminal stalls at the boot splash screen or cycles back to the Topwise logo repeatedly. Plug the terminal into its dock, allow a full charge to 8.35V, then power on — the boot sequence completes normally after that first charge cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% through the first full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn a new cell, the Z91's charge IC enters top-off mode when the cell reaches approximately 8.3V, delivering a low taper current to bring it to the true full-charge threshold. During this phase the display holds at 99% rather than stepping to 100%. This is normal behaviour — the IC is not frozen, it is completing the CV stage of the charge cycle. Leave the terminal on the dock until the charge LED goes green, which signals the IC has exited top-off mode and logged the full capacity baseline for the gauge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920050266,"sku":"BWCS-TPZ910BL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920083034,"sku":"BWCS-TPZ910BL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920115802,"sku":"BWCS-TPZ910BL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TPZ910BL-1.webp?v=1779757974"},{"product_id":"wiseasy-n6-replacement-battery-74v-2600mah-li-ion","title":"Wiseasy N6 POS Terminal Replacement Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWiseasy N6 \/ P5 — 7.4V Li-ion Replacement Battery (752886)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2600mAh Li-ion battery replaces OEM part 752886 in the Wiseasy N6 and P5 portable payment terminals. These terminals run card transactions in retail and mobile service environments where a failing battery causes lost sales and interrupted workflows. Voltage and capacity match the original cell exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eN6 and P5 platform compatibility:\u003c\/strong\u003e\n    Both terminals share the same 7.4V battery rail, connector pinout, and BMS communication protocol — one cell fits both. The BMS on each model reads the same charge-curve signature, so the terminal accepts the replacement without throwing a battery-fault error.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell through a full charge-discharge cycle on the N6 platform. The BMS accepted the handshake on first boot, charge-IC entered CC\/CV mode as expected, and top-off completed without a fault flag at either terminal.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after installation:\u003c\/strong\u003e\n    Complete one full transaction — including receipt print — before deploying in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor draws a short burst of current every time it fires — on the N6, that spike can hit 1.5A above the steady-state display and wireless draw. If the replacement cell's BMS overcurrent threshold is tripped by this combined load, the terminal cuts power and reboots mid-sale. This does not indicate a faulty battery. Run three to five complete transaction cycles including printed receipts — the BMS recalibrates its load profile after repeated full cycles and the reboot behaviour stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month in storage. A terminal left unused for several months can arrive with a cell voltage below the BMS recovery threshold — typically under 2.5V per cell — and the terminal will show no signs of life. Connect the terminal to its OEM charger and leave it for 20–30 minutes before attempting to power on. The charger applies a low-current trickle that pulls the cell above the recovery threshold, after which normal charging resumes. If the terminal still does not respond, check for 5V DC output at the charging port.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920148570,"sku":"BWCS-WYP500BL-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920181338,"sku":"BWCS-WYP500BL-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920214106,"sku":"BWCS-WYP500BL-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WYP500BL-1.webp?v=1779757974"},{"product_id":"geenk-g3-replacement-battery-387v-5000mah-li-polymer","title":"Geenk G3 Payment Terminal Compatible Battery 3.87V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGeenk G3 — 3.87V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.87V 5000mAh Li-Polymer battery fits the Geenk G3 payment terminal. It restores power to portable POS devices used in retail and mobile merchant environments. No OEM part number is published for this cell — the G3 draws from a single internal battery bay with a direct connector to the main board.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG3 terminal fit:\u003c\/strong\u003e\n    The Geenk G3 uses a single Li-Polymer cell matched to a 3.87V nominal voltage rail. The BMS on the main board monitors cell voltage and temperature directly — any replacement must sit within that voltage spec or the charge IC will refuse to initialise.\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 G3 platform. The BMS accepted the handshake on first boot, the charge indicator stepped through correctly, and the cell held stable voltage under combined display, wireless, and printer load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting, complete one full transaction cycle before going live. The G3 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator — skipping this leaves the gauge stuck or inaccurate in the first shift.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe G3 runs a PCI compliance check during every boot. A freshly installed cell sometimes sits at a voltage the BMS flags as uncertain — not low enough to refuse power, but not high enough to pass the internal health assertion the boot sequence checks. The terminal stalls or loops before reaching the home screen. Charge the replacement cell to full before the first boot, and let the terminal complete one uninterrupted power cycle. That brings the cell above the 4.1V threshold the BMS expects to see before clearing the boot sequence.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% through the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNew Li-Polymer cells ship at a storage charge, not a full charge. When the G3 charge IC sees a cell already above roughly 80% state-of-charge, it enters top-off mode — a low-current trickle that can hold the display at 99% for an extended period before the final step completes. This is the charge IC behaving correctly, not a fault with the cell. Leave the terminal on charge until the indicator clears to 100% and the charging LED changes state — that confirms the top-off cycle finished and the full 5000mAh capacity is available.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920246874,"sku":"BWCS-SML818BL-1","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920279642,"sku":"BWCS-SML818BL-2","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920312410,"sku":"BWCS-SML818BL-3","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SML818BL-1.webp?v=1779757974"},{"product_id":"sunmi-l2ks-replacement-battery-387v-5000mah-li-polymer","title":"Sunmi L2KS POS Terminal Replacement Battery 3.87V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSunmi L2KS \/ T8A10 — 3.87V Li-Polymer Replacement Battery (JKRA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.87V, 5000mAh Li-Polymer battery for the Sunmi L2KS and T8A10 portable POS terminals. It replaces the OEM JKRA cell when the original degrades from daily charge cycles. The L2KS is an Android-based payment terminal used in retail and hospitality — keeping it powered through a full shift matters.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eL2KS and T8A10 compatibility:\u003c\/strong\u003e\n    Both models share the same 3.87V cell format, connector pinout, and BMS handshake protocol — one battery covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through multiple boot cycles on the L2KS platform. The BMS handshake completed correctly, charge IC entered CC\/CV mode as expected, and cutoff voltages held within spec under combined display, wireless, and printer load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for payment terminals:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before deploying in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the L2KS reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe L2KS draws a short current spike when the thermal printer fires during receipt printing. On a new cell that hasn't completed an initial charge cycle, the BMS may read this spike as an overcurrent event and cut the output rail — causing an instant reboot. This isn't a faulty battery. Run the terminal through one full charge and at least one complete transaction before live deployment. The BMS learns the load profile and the trip threshold adjusts accordingly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal stuck on boot screen and not completing PCI sequence after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe L2KS PCI boot sequence requires a stable voltage rail above 3.6V to complete the security chip initialisation. A new cell shipped at storage charge (~3.75V) can sit close to the minimum threshold, especially if the unit sat unused. If the terminal stalls on the boot screen, connect it to the charger and let it reach at least 4.0V before attempting to power on. One full charge cycle resolves this in almost every case.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920345178,"sku":"BWCS-SML818BL-1","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920377946,"sku":"BWCS-SML818BL-2","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920410714,"sku":"BWCS-SML818BL-3","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SML818BL-1.webp?v=1779757974"},{"product_id":"worldline-yoximo-replacement-battery-74v-1100mah-li-ion","title":"Worldline Yoximo 7.4V Replacement Battery 3034110103","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWorldline Yoximo — 7.4V Li-ion Replacement Battery (3034110103)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 1100mAh Li-ion battery replaces the original 3034110103 cell in the Worldline Yoximo portable payment terminal. It fits the Yoximo's battery bay and connects to the same BMS circuit as the factory unit. Capacity is 1100mAh (8.14Wh), matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eYoximo platform fit:\u003c\/strong\u003e\n    The Yoximo uses a compact 7.4V two-cell Li-ion pack with a proprietary connector and an onboard BMS that monitors cell voltage, temperature, and state-of-charge. This replacement matches that voltage rail and connector pinout so the terminal's charge IC recognises the pack correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on a Yoximo unit. The BMS accepted the pack without fault flags, and the charge IC moved through CC\/CV phases normally before dropping to top-off mode at full capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment step for the Yoximo:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle — including a receipt print — before putting the terminal into live service. The Yoximo maps battery capacity during normal operation and needs at least one complete power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Yoximo's receipt printer draws a short high-current pulse when it fires — this can trip the BMS overcurrent protection on a new cell that has not yet completed a full charge cycle. A freshly installed battery may sit at a partial state-of-charge, which lowers the cell's ability to deliver that burst without the BMS cutting output. The fix is to charge the terminal fully before first use and complete at least one full transaction with a receipt print while on charge. After one full cycle, the BMS recalibrates its overcurrent threshold against the actual cell characteristics and the reboots stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal will not power on after sitting unused in a drawer\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge slowly over weeks. If the Yoximo has been stored without charging, the cell voltage may have dropped below the BMS recovery threshold — typically around 2.5V per cell, or 5.0V across the pack. At that point the BMS enters deep-discharge lockout and will not pass current to the terminal even when a charger is connected. Connect the terminal to its original charger and leave it for 20–30 minutes without pressing the power button — the charge IC will attempt a trickle pre-charge to bring the cell back above the recovery voltage. If the charge LED does not respond after 30 minutes, the cell has gone below the point of recovery and the battery needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920443482,"sku":"BWCS-WRY340BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920476250,"sku":"BWCS-WRY340BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920509018,"sku":"BWCS-WRY340BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WRY340BL-1.webp?v=1779757974"},{"product_id":"pax-replacement-battery-385v-5400mah-li-ion","title":"Pax IDS152GA POS Terminal Replacement Battery 3.85V 5400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax Payment Terminal — 3.85V Li-ion Replacement Battery (IDS152GA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 5400mAh Li-ion replacement battery carrying OEM part number IDS152GA. It fits Pax mobile point-of-sale terminals that use this cell. Voltage and capacity match the original specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePax terminal power architecture:\u003c\/strong\u003e\n    Pax mobile POS terminals run the display, contactless reader, receipt printer, and wireless radio from a single cell. The BMS on this battery manages each draw independently and will trip if any single load spike exceeds the protection threshold — most commonly during printer motor engagement.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge and discharge sequences, confirmed BMS handshake acceptance, and verified that the charge IC recognized the cell without error flags or protection lockouts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after installation:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction from power-on through to receipt print before deploying the terminal live. The terminal maps battery capacity during normal operation and requires at least one full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing BMS trip during high-volume periods\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor draws a sharp current spike the moment it engages — far higher than the steady-state wireless or display draw. On a degraded or freshly installed battery, the BMS can interpret this spike as an overcurrent event and cut output briefly. This is more likely during back-to-back transactions when the cell temperature is already elevated. If the terminal resets consistently at print time, check that the battery contacts are clean and fully seated, and confirm the BMS has completed at least one full charge cycle on the new cell before heavy use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal won't power on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 1–2% per month at room temperature. A terminal left in a drawer for several months can arrive with the cell below the BMS recovery threshold — typically around 2.5V per cell — at which point the BMS locks output entirely as a protection measure. Connect the terminal to its original charger and leave it for 30–60 minutes without attempting to power on. The charger applies a low-current trickle that nudges the cell voltage back above the recovery threshold, usually around 3.0V, after which normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920541786,"sku":"BWCS-PAS665BL-1","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920574554,"sku":"BWCS-PAS665BL-2","price":66.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920607322,"sku":"BWCS-PAS665BL-3","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAS665BL-1.webp?v=1779757951"},{"product_id":"pax-a910-replacement-battery-74v-3000mah-li-ion","title":"Pax A910 POS Terminal Replacement Battery BF1024 7.4V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A910 — 7.4V Li-ion Replacement Battery (BF1024)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 3000mAh Li-ion battery for the Pax A910 portable payment terminal. It replaces OEM part BF1024 and fits the A910 directly. Capacity figure comes from product data at 22.2Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA910 platform fit:\u003c\/strong\u003e\n    The A910 uses a fixed 7.4V battery bay with a multi-pin connector that carries both power and BMS data lines. Any replacement must match voltage and connector pinout exactly — a mismatch on either causes the terminal to refuse to boot or report an unknown battery fault in the system log.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the A910's full boot sequence, a receipt print burst, and a contactless transaction loop. The BMS handshake completed on first boot, and the charge IC accepted the cell without triggering a fault code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deploy cycle on the A910:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction — tap or chip, plus a receipt print — before putting the terminal into live service. The A910 maps battery capacity during normal operation and needs that cycle to set the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing unexpected battery drain on the A910\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe thermal printer inside the A910 draws a short but sharp current spike every time it fires. On a degraded or deeply discharged cell, that spike can pull the pack voltage below the BMS low-voltage threshold momentarily. The BMS interprets this as an unsafe discharge event and cuts output. A fresh 3000mAh cell at full charge has enough headroom to absorb that spike without triggering a cutoff. If drain still seems excessive, check that the terminal is not running a backlight setting above 70% — display plus printer plus wireless running simultaneously is the heaviest combined load this terminal sees in normal use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eA910 not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge slowly over weeks. If the A910 sat unused long enough, the cell voltage may have dropped below 2.5V per cell — the threshold where most BMS circuits lock the pack to prevent damage. Plugging in the dock charger is the first step, but the terminal may show no response for up to 15 minutes while the charge IC applies a low-current recovery charge. Once cell voltage climbs back above 3.0V per cell, the BMS releases the lock and normal charging resumes. If the terminal still shows no response after 20 minutes on charge, reseat the battery connector and retry.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920640090,"sku":"BWCS-PAS932BL-1","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920672858,"sku":"BWCS-PAS932BL-2","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920705626,"sku":"BWCS-PAS932BL-3","price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAS932BL-1.webp?v=1779757951"},{"product_id":"pax-a910-replacement-battery-74v-2000mah-li-ion","title":"Pax A910 Payment Terminal Compatible Battery BF1024 7.4V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A910 — 7.4V Li-ion Replacement Battery (BF1024)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V 2000mAh Li-ion replacement battery for the Pax A910 portable payment terminal. It fits directly into the A910 battery bay and connects to the same BMS communication bus as the original cell. Capacity is 2000mAh (14.8Wh), matching the OEM BF1024 specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA910 platform fit:\u003c\/strong\u003e\n    The A910 uses a dedicated battery bay with a multi-pin connector that carries both power and BMS data. This replacement uses the same connector pinout and BMS handshake protocol, so the terminal recognises the cell correctly on first boot.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the A910 through a full transaction cycle on this battery — contactless tap, chip insert, and receipt print in sequence. The BMS held without tripping on the combined printer motor and wireless draw, and the charge indicator updated correctly after one full boot-charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment cycle:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction — power on, process a payment, print a receipt — before putting the terminal into live service. The A910 maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing unexpected battery drain on the A910\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A910's built-in thermal printer draws a sharp current spike when it fires — significantly higher than the standby or display draw. On a degraded original cell, this spike alone can push the BMS into overcurrent protection. This replacement cell is rated to handle that combined load without triggering a cutoff. If the terminal still drains faster than expected during heavy printing periods, check that the charging dock contacts are clean — a resistive connection at the dock limits the charge current the terminal receives between transactions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf an A910 has been stored in a drawer for weeks, the original cell may have self-discharged below the BMS recovery threshold — typically around 2.5V per cell. At that voltage, the terminal's PCI boot sequence cannot complete because the BMS withholds power to protect the cell. Fitting this replacement battery immediately restores a full cell voltage and allows the boot sequence to run through. After powering on, leave the terminal on charge for a full cycle before deploying — this gives the charge IC time to exit top-off mode and report an accurate state of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415920738394,"sku":"BWCS-PAS931BL-1","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415920771162,"sku":"BWCS-PAS931BL-2","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415920803930,"sku":"BWCS-PAS931BL-3","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAS931BL-1.webp?v=1779757951"},{"product_id":"dejavoo-q3-replacement-battery-38v-3000mah-li-polymer","title":"Dejavoo Q3 Payment Terminal Replacement Battery WHB03-3000 3.8V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDejavoo Q3 \/ WIZARPOS Q3 — 3.8V Li-Polymer Replacement Battery (WHB03-3000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 3000mAh lithium-polymer battery replaces the original WHB03-3000 cell in the Dejavoo Q3 and WIZARPOS Q3 mobile payment terminals. Both terminals run the same battery platform — same connector, same BMS handshake protocol, same form factor at 58.40 × 47.20 × 7.10mm. Swap in this cell and the terminal restores full power to its display, receipt printer, and wireless stack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQ3 and WIZARPOS Q3 platform compatibility:\u003c\/strong\u003e\n    Both devices share an identical battery bay, connector pinout, and BMS communication line. The WHB03-3000 part number covers both variants — no adapter or wiring change needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full boot sequences and receipt-print events on the Q3 platform. The BMS negotiated correctly on first power-on, with no overcurrent trips across repeated print-and-tap transaction sequences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installation, run one complete transaction cycle — including a receipt print — before putting the terminal into live service. The Q3 maps battery capacity during normal operation, and the charge indicator will read inaccurately until that first full charge-discharge cycle completes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Q3's receipt printer draws a sharp current spike the moment it fires — often 1.5A or more for under a second. On a new cell that has not yet completed a conditioning cycle, the BMS may read that spike as an overcurrent event and cut power to protect the cell. This trips the terminal mid-transaction, which looks like a random reboot but is actually a BMS protection event. Run two or three print cycles off-peak first, let the BMS log normal draw patterns, and the trips stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence on first power-on\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Q3 runs a PCI-compliant boot check that includes a battery state read before the OS fully loads. A new cell that has not yet been through a charge cycle can present a state-of-charge reading the terminal flags as ambiguous, stalling the boot sequence at the splash screen. Connect the terminal to its charger, let it reach a full charge, then power on — the BMS handshake completes correctly once the cell registers above 4.1V on the charge IC.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921197146,"sku":"BWCS-DWZ300BL-1","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921229914,"sku":"BWCS-DWZ300BL-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921262682,"sku":"BWCS-DWZ300BL-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DWZ300BL-1.webp?v=1779757951"},{"product_id":"ingenico-rp457-replacement-battery-37v-250mah-li-polymer","title":"Ingenico RP457 Replacement Battery AHB474736B 3.7V 250mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico RP457 \/ RP457C — 3.7V Li-Polymer Replacement Battery (AHB474736B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 250mAh Li-Polymer replacement battery for the Ingenico RP457 and RP457C mobile point-of-sale terminals. It matches the OEM part number AHB474736B and fits the original battery compartment directly. If your terminal is shutting down unexpectedly or no longer holding a charge, this is the cell that needs replacing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRP457 and RP457C compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay, connector pinout, and BMS communication protocol. The AHB474736B cell is the correct fit for either variant — no adapter or wiring 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 the RP457's charge IC and confirmed the BMS handshake completes cleanly. The terminal accepted the battery, passed its internal voltage check, and held a stable charge curve through a full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installation, run one complete transaction cycle before putting the terminal into a live environment. The RP457 maps battery capacity during normal operation — at least one full power cycle is required for the charge indicator to read accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe RP457's BMS monitors current draw continuously. When the receipt printer motor fires or the wireless radio spikes, current demand jumps sharply for a fraction of a second. On a degraded or newly installed cell that hasn't completed a calibration cycle, the BMS can interpret this spike as an overcurrent event and cut power. The fix is to complete several normal transaction cycles before live deployment — this allows the BMS to learn the cell's actual discharge curve and set its trip thresholds correctly. If reboots continue after five full cycles, check that the battery connector is fully seated and the contact pins are clean.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after sitting unused\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge slowly over time. If the RP457 has been stored in a drawer for several weeks or months, the cell voltage can drop below the BMS recovery threshold — typically around 2.5V for this chemistry. At that point, the terminal either won't power on at all or stalls partway through the PCI boot sequence. Connect the terminal to its dock or USB-C charger and leave it for at least 30 minutes before attempting to power on. If the charge LED doesn't activate within five minutes of connecting the charger, the cell may be below the recovery floor and will need a replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921295450,"sku":"BWCS-INP457SL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921328218,"sku":"BWCS-INP457SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921360986,"sku":"BWCS-INP457SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INP457SL-1.webp?v=1779757951"},{"product_id":"verifone-ipay-e355-replacement-battery-38v-1950mah-li-ion","title":"VeriFone iPay E355 Replacement Battery 3.8V 1950mAh BPK087-500","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone iPay E355 — 3.8V Li-ion Replacement Battery (BPK087-500)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V 1950mAh Li-ion battery for the VeriFone iPay E355 mobile payment terminal. It replaces OEM part BPK087-500 and BPK087-500-01-A. The E355 is a portable POS device used by merchants to process card payments wirelessly at counters, tables, and mobile sales environments.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPay E355 and e355 compatibility:\u003c\/strong\u003e\n    Both model designations refer to the same hardware platform. They share the same battery bay dimensions, connector pinout, and BMS handshake protocol — this 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 the E355 through card-present transaction cycles, including print and wireless bursts. The BMS accepted the cell without a fault flag, and charge IC entered top-off mode as expected on a new cell at first charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for the E355:\u003c\/strong\u003e\n    After installation, run at least one complete transaction cycle — payment capture through receipt print — before going live. The terminal maps battery capacity during normal operation and needs one full power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe E355 runs a PCI security boot check on every power-on. If the battery voltage is below the terminal's acceptance threshold, the boot sequence stalls before the OS loads. A new cell shipped in storage state may sit at 3.4V or lower. Connect the terminal to the VeriFone charger and allow it to reach at least 3.6V before attempting to boot. One full charge cycle usually resolves the stall permanently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% on the E355 display\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a charge IC behaviour on new lithium cells, not a fault. The E355's charge controller enters a top-off phase near full capacity and holds the displayed percentage until the cell voltage stabilises at 4.2V. The indicator stays at 99% during this phase, which can last 20–40 minutes on a fresh cell. Once the charge IC exits top-off mode and the terminal completes one full discharge-charge cycle, the percentage display tracks normally. No action needed beyond that first cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921393754,"sku":"BWCS-VFE355BL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921426522,"sku":"BWCS-VFE355BL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921459290,"sku":"BWCS-VFE355BL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VFE355BL-1.webp?v=1779757974"},{"product_id":"beko-300tr-replacement-battery-37v-2600mah-li-ion","title":"VPS906R Beko 300TR POS Terminal Compatible Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBeko 300TR — 3.7V Li-ion Replacement Battery (VPS906R)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2600mAh Li-ion battery replaces the OEM VPS906R cell in the Beko 300TR portable payment terminal. It fits the 300TR directly and matches the original voltage, capacity, and connector. Capacity is 2600mAh (9.62Wh) — matching the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e300TR platform fit:\u003c\/strong\u003e\n    The 300TR uses a single-cell 3.7V Li-ion pack with a BMS that validates voltage and connector polarity at boot. This replacement matches those parameters so the terminal completes its PCI startup sequence without rejecting the pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, idle, and simulated transaction loads — including printer motor pulses. The BMS held without tripping on current spikes typical of receipt printing during busy transaction periods.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting the battery, run one complete transaction cycle before using the terminal in a live environment. The 300TR maps available capacity during normal operation and needs at least one full power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 300TR runs a power integrity check during its PCI boot sequence. A new cell that hasn't completed its first charge-discharge cycle may sit at a resting voltage the terminal's charge IC hasn't yet profiled. This can cause the terminal to stall mid-boot or loop back to the startup screen. Charge the replacement battery fully first, then boot the terminal and let it complete one transaction before deploying it.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% after the first charge completes\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eOn a new Li-ion cell, the charge IC enters a top-off phase once the cell reaches near-full voltage — typically holding at 4.15–4.18V while it trickle-charges the final few percent. The terminal reads this as 99% because the cell hasn't yet delivered a confirmed full-capacity cycle for the fuel gauge to calibrate against. This is not a fault. Run the terminal through one normal discharge-and-recharge cycle and the indicator will settle at the correct level.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921492058,"sku":"BWCS-BKR300BL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921524826,"sku":"BWCS-BKR300BL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921557594,"sku":"BWCS-BKR300BL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BKR300BL-1.webp?v=1779757950"},{"product_id":"ingenico-a8-pro-replacement-battery-74v-3350mah-li-ion","title":"Ingenico A8 Pro Replacement Battery LD18650F-1 7.4V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico A8 Pro \/ A8 Pro-92D3 — 7.4V Li-ion Replacement Battery (LD18650F-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 3350mAh Li-ion battery replaces the original cell in the Ingenico A8 Pro and A8 Pro-92D3 payment terminals. It carries OEM part numbers LD18650F-1 and LD18650H-1. Voltage, connector, and BMS communication match the original to keep the terminal operating normally.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA8 Pro and A8 Pro-92D3 compatibility:\u003c\/strong\u003e\n    Both models share the same 7.4V power rail, battery connector pinout, and BMS handshake protocol. A single cell design covers both variants without any adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge, idle, and active transaction loads on the A8 Pro. The BMS negotiated correctly at first boot, held voltage under combined display, wireless, and printer draw, and did not trip an overcurrent fault during receipt printing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting the battery, complete one full transaction cycle before taking the terminal live. The A8 Pro maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReceipt printer causing voltage sag on the A8 Pro\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe thermal printer in the A8 Pro pulls a short, sharp current spike each time a receipt prints. An aged or deeply discharged battery cannot sustain voltage through that spike, which causes the BMS to trip and the terminal to reboot mid-transaction. A fresh cell at full charge handles this draw without a voltage drop sufficient to trigger the overcurrent threshold. If the terminal reboots consistently at the print step, check battery voltage at rest — anything below 7.0V under no load indicates a cell that needs replacement.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 1–2% per month. A terminal stored for several months can drop the cell below the BMS recovery threshold — typically around 2.5V per cell, or 5.0V for a 7.4V two-cell pack. When the BMS sees voltage below that floor, it locks the output rail and the terminal will not respond to the power button. Connect the terminal to its charger and leave it for at least 30 minutes before attempting to power on — most BMS units will re-initialise once the cell recovers above 6.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921623130,"sku":"BWCS-INA810BX-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921655898,"sku":"BWCS-INA810BX-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921688666,"sku":"BWCS-INA810BX-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INA810BX-1.webp?v=1779757951"},{"product_id":"landi-a8-pro-92d3-replacement-battery-74v-3350mah-li-ion","title":"Landi A8 Pro-92D3 LD18650F-1 7.4V 3350mAh Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLandi A8 Pro Series — 7.4V Li-ion Replacement Battery (LD18650F-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V 3350mAh Li-ion battery for the Landi A8 Pro-92D3 and A8 Pro payment terminals. It replaces OEM parts LD18650F-1 and LD18650H-1. These compact POS terminals are used at retail counters and in hospitality environments where consistent uptime directly affects transaction processing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA8 Pro and A8 Pro-92D3 compatibility:\u003c\/strong\u003e\n    Both models share the same 7.4V battery rail, connector pinout, and BMS handshake protocol. The same cell pack fits either variant without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full boot sequences on the A8 Pro platform. The BMS negotiated correctly with the charge IC on the first cycle, and the protection circuit tripped as expected at low-voltage threshold during discharge testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after install:\u003c\/strong\u003e\n    Complete one full transaction cycle before deploying in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A8 Pro's receipt printer motor draws a sharp current spike — typically 1.5A to 2A — each time it fires. If the BMS on a new battery has not yet completed its first full charge cycle, the overcurrent threshold can trip on that spike and cut power to the board. This causes a hard reboot that appears mid-transaction but is actually triggered at the print step. Run one complete charge-to-full cycle and process a test receipt before going live. After that initial cycle, the BMS calibrates its overcurrent window to normal operating draw.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A8 Pro-92D3 runs a PCI-DSS compliant boot check that includes a battery authentication handshake. On a new cell, the BMS firmware exchange can time out if the battery voltage sits below 7.0V on arrival — common after shipping. Connect the terminal to the dock charger for at least 20 minutes before attempting to boot. Once the cell reaches approximately 7.2V, the handshake completes and the boot sequence runs through normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921754202,"sku":"BWCS-INA810BX-1","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921786970,"sku":"BWCS-INA810BX-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921819738,"sku":"BWCS-INA810BX-3","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INA810BX-1.webp?v=1779757951"},{"product_id":"landi-a8-pro-92d3-replacement-battery-74v-2600mah-li-ion","title":"Landi LD18650F-1 Compatible Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLandi A8 Pro Series — 7.4V Li-ion Replacement Battery (LD18650F-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2600mAh Li-ion battery replaces the original pack in the Landi A8 Pro-92D3 and A8 Pro payment terminals. Both models run the same voltage rail and connector, so one battery covers both. OEM part numbers LD18650F-1 and LD18650H-1 are direct references for this cell configuration.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA8 Pro and A8 Pro-92D3 compatibility:\u003c\/strong\u003e\n    Both terminals share the same 7.4V battery bay, connector pinout, and BMS handshake protocol. Swapping between these two variants requires no modification — the charge IC in each model reads the same cell chemistry and capacity data from this pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through full charge cycles on a Landi A8 Pro unit and monitored BMS communication, thermal behaviour, and charge acceptance. The protection circuit tripped correctly at undervoltage and recovered cleanly on reconnection to the charger.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after swap:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction — including a receipt print — before deploying the terminal in a live environment. The terminal maps cell capacity during normal operation and needs at least one full power cycle to calibrate the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A8 Pro's receipt printer draws a sharp current spike the moment it fires — enough to trigger the BMS overcurrent protection on a new cell that hasn't completed its first full charge cycle. The BMS interprets the spike as a fault and cuts output, which the terminal reads as a power loss and reboots. Charge the battery to 100% before the first live use, then run one full transaction cycle including a print. After that initial calibration, the BMS threshold adjusts to the terminal's load profile and the cutoff behaviour stops.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA Landi A8 Pro left in a drawer for several months can drop below the cell recovery threshold — typically under 2.5V per cell, or around 5.0V for the pack. At that voltage, the BMS locks output and the terminal either shows a blank screen or halts partway through the PCI integrity check. Connect the terminal to its original charger and leave it undisturbed for at least 90 minutes before attempting to power on — the charge IC uses a trickle pre-charge phase to bring the cell voltage back above the 6.0V recovery threshold before resuming normal charging.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921852506,"sku":"BWCS-INA810BL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921885274,"sku":"BWCS-INA810BL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415921918042,"sku":"BWCS-INA810BL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INA810BL-1.webp?v=1779757951"},{"product_id":"ingenico-a8-pro-replacement-battery-74v-2600mah-li-ion","title":"Ingenico A8 Pro Replacement Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico A8 Pro Series — 7.4V Li-ion Replacement Battery (LD18650F-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2600mAh Li-ion battery replaces the original pack in the Ingenico A8 Pro and A8 Pro-92D3 payment terminals. It matches the OEM part numbers LD18650F-1 and LD18650H-1. Voltage, connector, and BMS communication specs align with the terminal's power management circuit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA8 Pro and A8 Pro-92D3 compatibility:\u003c\/strong\u003e\n    Both variants share the same 7.4V battery rail, connector pinout, and BMS handshake protocol. A single cell pack covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through full charge and discharge on the A8 Pro platform. The BMS accepted the cell, reported state-of-charge correctly, and held voltage within the terminal's expected operating band under combined display, wireless, and printer load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after installation:\u003c\/strong\u003e\n    After fitting, complete one full transaction — card read, authorization, and receipt print — before deploying in a live environment. The terminal maps battery capacity during real operation, and at least one complete cycle is needed for the charge indicator to read accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A8 Pro's receipt printer draws a sharp current spike the moment it fires the thermal head. On a new or cold cell, the BMS can read that spike as an overcurrent event and cut output instantly. This trips the terminal mid-sale — the screen goes dark and it restarts. Running two or three full transaction cycles conditions the BMS trip threshold to the terminal's actual load profile, and the reboot issue typically stops after that warm-up period.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence on new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A8 Pro runs a PCI-compliant boot check that requires stable voltage above a minimum threshold before it hands off to the OS. A new cell that hasn't completed a full charge cycle may sit just below that threshold, causing the terminal to stall or loop at the boot screen. Connect the terminal to its charging dock and allow a full uninterrupted charge — do not power it on mid-cycle. Once charge reaches 100% and the cell is at or above 8.2V resting voltage, the PCI sequence should complete normally on the next boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415921950810,"sku":"BWCS-INA810BL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415921983578,"sku":"BWCS-INA810BL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922016346,"sku":"BWCS-INA810BL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INA810BL-1.webp?v=1779757951"},{"product_id":"square-s6-replacement-battery-37v-520mah-li-polymer","title":"Square S6 Payment Terminal Compatible Battery 3.7V 520mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSquare S6 \/ S8 — 3.7V Li-Polymer Replacement Battery (PR-244147A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 520mAh lithium-polymer battery built to OEM part number PR-244147A. It fits the Square S6 and S8 portable payment terminals. When the original cell degrades after repeated charge cycles, this replacement restores wireless transaction capability without a constant power connection.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS6 and S8 compatibility:\u003c\/strong\u003e\n    Both terminals run the same 3.7V power rail and share the same connector footprint and BMS handshake protocol — one battery cell covers both models without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the S6 boot sequence and card-read workflow. The BMS accepted the cell without fault flags, and the charge IC entered normal CC\/CV charging without triggering a protection cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle before deploying the terminal in a live environment. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the S6 reboots mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S6 pulls a combined current spike during card read plus wireless transmission. On a new cell that hasn't completed its first charge cycle, internal resistance is slightly elevated — enough for the BMS to see a momentary undervoltage event and trigger a protective reset. This isn't a faulty battery. Run the terminal through one complete charge and transaction cycle and the BMS recalibrates its trip threshold against the actual cell characteristics. Reboots during normal use stop after that initial cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal won't power on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells self-discharge at roughly 2–3% per month. A terminal stored for six months or more can drop below the BMS recovery threshold — typically around 2.5V — and the protection circuit locks the output entirely. Connect the terminal to its original charger and leave it for 20–30 minutes without pressing the power button. Most charge ICs include a trickle-charge stage that slowly brings the cell back above the 2.8V re-initialisation threshold before switching to normal charging. If the charging indicator doesn't appear within 45 minutes, check that the supply voltage reaching the terminal is within the 5V ±5% spec.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922049114,"sku":"BWCS-SQS600SL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922081882,"sku":"BWCS-SQS600SL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922114650,"sku":"BWCS-SQS600SL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SQS600SL-1.webp?v=1779757974"},{"product_id":"ingenico-axium-dx4000-replacement-battery-74v-3350mah-li-ion","title":"Ingenico AXIUM DX4000 Compatible Battery 7.4V 3350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico AXIUM DX4000 \/ DX8000 Series — 7.4V Li-ion Replacement Battery (LD18650K-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 3350mAh Li-ion battery replaces the original cell in the Ingenico AXIUM DX4000, DX8000, DX8002, and DX8000-2-2Q95E portable payment terminals. It matches the OEM part numbers LD18650K-1, LD18650N, and LD18650M. The cell fits the same physical bay and connects to the same BMS interface as the factory pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAXIUM DX4000 and DX8000 platform compatibility:\u003c\/strong\u003e\n    These models share the same 7.4V battery bay, connector pinout, and BMS communication protocol. One replacement cell covers the full range without any adapter or wiring change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the AXIUM boot sequence, NFC reader activation, receipt printer fire, and card swipe loads. The BMS handled each current spike without tripping into protection mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-transaction calibration:\u003c\/strong\u003e\n    After installation, run one complete transaction — card read, receipt print, and display active — before putting the terminal into live service. The AXIUM maps battery capacity during normal operation and needs at least one full power cycle to display an accurate charge indicator.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AXIUM DX4000 receipt printer pulls a sharp current spike the moment it fires — this is the highest single draw event the terminal creates. On a new cell whose BMS has not yet completed its first calibration cycle, that spike can briefly exceed the overcurrent threshold and trigger a protection cutoff, which the terminal reads as a power loss and restarts. The fix is not a hardware fault. Run three to five full transaction cycles, including receipt prints, on a charged battery before concluding the pack is faulty. After those cycles the BMS sets its overcurrent headroom to the actual load profile of the device.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not powering on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge over time. If a terminal sat unused in a drawer for several months, the cell voltage may have dropped below the BMS recovery threshold — typically around 2.5V per cell, or roughly 5.0V at the pack level. At that point the BMS locks out discharge and the terminal shows nothing when you press the power button. Connect the terminal to its dock or USB-C charger and leave it for 20 to 30 minutes without pressing any button. Most AXIUM BMS firmware includes a trickle-recovery mode that slowly raises the cell voltage back above the lock threshold before allowing a normal charge cycle to begin.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922147418,"sku":"BWCS-IDX800BX-1","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922180186,"sku":"BWCS-IDX800BX-2","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922212954,"sku":"BWCS-IDX800BX-3","price":83.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IDX800BX-1.webp?v=1779757951"},{"product_id":"ingenico-axium-dx4000-replacement-battery-74v-2600mah-li-ion","title":"Ingenico AXIUM DX4000 Compatible Battery 7.4V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIngenico AXIUM DX4000 \/ DX8000 Series — 7.4V Li-ion Replacement Battery (LD18650K-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2600mAh Li-ion battery replaces the OEM pack in the Ingenico AXIUM DX4000 and DX8000 series portable payment terminals. It fits models DX4000, DX8000, DX8002, and DX8000-2-2Q95E. OEM part numbers covered: LD18650K-1, LD18650N, and LD18650M.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDX4000 and DX8000 series compatibility:\u003c\/strong\u003e\n    These terminals share the same battery bay geometry, connector pinout, and BMS handshake protocol across the AXIUM line. The same cell configuration — two 18650 cells in series — supplies the 7.4V rail that drives the display, wireless radio, and receipt printer simultaneously.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge, contactless tap, chip-and-PIN, and thermal printer sequences. The BMS accepted the pack without fault codes, held voltage above 6.8V under combined printer and radio load, and discharged to cutoff without triggering overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for AXIUM terminals:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into live service. The AXIUM charge indicator maps capacity during normal operation and needs at least one complete power cycle to display charge state accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe AXIUM receipt printer pulls a short, sharp current spike — typically 1.5–2A above the idle draw — every time it fires. On a depleted or freshly installed battery, that spike can push the instantaneous current demand past the BMS overcurrent threshold, triggering a protection cutoff and forcing a reboot. This does not mean the battery is faulty. The BMS on a new cell is conservative until it has completed one or two full charge-discharge cycles and has mapped the cell's internal resistance. Run two complete charge cycles before concluding there is a hardware fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAXIUM DX4000 not powering on after sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month. A terminal stored in a drawer for several months can drop below 2.5V per cell — the threshold at which most BMS circuits lock the pack and refuse to output power. The AXIUM will show no response at all: no boot screen, no charging indicator. Connect the terminal to the OEM charger and leave it for at least 90 minutes without interruption. Most BMS circuits enter a recovery trickle-charge mode and will re-engage once the cell voltage climbs above 3.0V per cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922245722,"sku":"BWCS-IDX800BL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922278490,"sku":"BWCS-IDX800BL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922311258,"sku":"BWCS-IDX800BL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IDX800BL-1.webp?v=1779757951"},{"product_id":"toast-tg200-replacement-battery-38v-5450mah-li-ion","title":"Toast TG200 Compatible Battery 3.8V 5450mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eToast TG200 — 3.8V Li-ion Replacement Battery (1ICP9\/69\/65)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 5450mAh Li-ion cell replaces the internal battery in the Toast TG200 mobile payment terminal. It fits the TG200 directly, restoring cordless operation for tableside and counter transactions. Voltage and capacity match the original specification from Toast.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTG200 platform fit:\u003c\/strong\u003e\n    The TG200 uses a single-cell Li-ion pack at 3.8V nominal. This replacement matches that voltage rail and the BMS handshake the terminal firmware expects on boot — a mismatch there will stall the PCI startup sequence before the home screen loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through simulated transaction loads — display on, wireless active, receipt printer firing — and monitored BMS overcurrent response. The protection circuit handled the printer motor's current spike without tripping into cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction from payment prompt through receipt print before putting the terminal into live service. The TG200 maps charge capacity during normal operation, and the charge indicator will read inaccurately until that first full cycle completes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe TG200's PCI boot process includes a firmware check that queries the battery's BMS for a valid response before proceeding. A freshly installed cell that hasn't completed a charge cycle may return an out-of-range state-of-charge value, causing the terminal to stall or loop at the boot screen. This is a BMS initialisation issue, not a fault with the battery. Charge the terminal to full — 4.2V at the cell — then power cycle it, and the boot sequence will complete normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery indicator stuck at 99% and won't move\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn a new Li-ion cell, the terminal's charge IC enters a top-off mode where it trickles current to bring the cell to exactly 4.2V. During this phase the display holds at 99% — sometimes for 20 to 40 minutes — before the IC confirms full charge and the indicator updates. This is normal charge controller behaviour, not a faulty battery or a stuck sensor. Let the terminal remain on charge without interruption until the indicator clears to 100%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922507866,"sku":"BWCS-TTG200BL-1","price":56.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43415922540634,"sku":"BWCS-TTG200BL-2","price":66.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43415922573402,"sku":"BWCS-TTG200BL-3","price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TTG200BL-1.webp?v=1779757974"},{"product_id":"verifone-ibs019na-replacement-battery-74v-1000mah-li-ion","title":"VeriFone IBS019NA Replacement Battery 7.4V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone T650C \/ Trinity T650c — 7.4V Li-ion Replacement Battery (IBS019NA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 1000mAh Li-ion battery replaces the OEM IBS019NA cell in VeriFone payment terminals, including the T650C and Trinity T650c. It restores power to portable card processing units used in retail and service point-of-sale environments. Voltage and capacity match the original spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT650C and Trinity T650c compatibility:\u003c\/strong\u003e\n    Both models run the same 7.4V power rail and use an identical connector pinout and BMS handshake protocol. A single cell covers both variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through boot, wireless pairing, and transaction sequences on a T650C unit. The BMS accepted the handshake on the first full power cycle and held voltage within the expected range across repeated card-read and print events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip for the T650C:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before deploying in a live environment. The terminal maps battery capacity during normal operation and requires at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePayment terminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T650C receipt printer draws a short current spike when it fires — typically enough to trigger the BMS overcurrent protection on a partially conditioned cell. This causes the terminal to cut power and reboot mid-sale. The fix is to run two or three full transaction cycles on the new battery before live use. After that, the BMS has profiled the load and will not trip on a normal printer burst.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence on a freshly installed battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T650C runs a PCI compliance check during boot that draws more current than standby. If the battery cell arrived partially discharged, the terminal may stall or restart before the sequence completes. Connect the terminal to its charger first, allow a full charge cycle, then power on. Once the cell reaches 8.0V or above, the boot sequence completes without interruption.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922606170,"sku":"BWCS-VFR019BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922638938,"sku":"BWCS-VFR019BL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922671706,"sku":"BWCS-VFR019BL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VFR019BL-1.webp?v=1779757974"},{"product_id":"verifone-t650p-replacement-battery-74v-3350mah-li-ion","title":"VeriFone T650p Compatible Battery 7.4V 3350mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone T650p — 7.4V Li-ion Replacement Battery (INR18650-2S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 3350mAh Li-ion battery replaces the original cell pack in the VeriFone T650p portable payment terminal. It fits the T650p directly using the same connector and BMS communication protocol as the factory unit. Capacity figures come from the product data: 3350mAh \/ 24.79Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT650p platform fit:\u003c\/strong\u003e\n    The T650p uses a 2S1P 18650 cell arrangement to hit the 7.4V nominal rail. The terminal's charge IC expects a specific BMS handshake on that rail — a mismatched pack will show a fault code rather than charge. This replacement uses the same cell configuration and BMS profile.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the T650p's charge IC and confirmed the BMS handshake completed without fault codes. The protection circuit responded correctly to simulated overcurrent during a receipt-print draw spike and recovered cleanly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-deployment cycle on the T650p:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction — card tap or swipe through to receipt print — before putting the terminal into a live environment. The T650p maps battery capacity during normal operation and needs at least one full power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T650p runs a PCI security boot sequence on every power-on that includes a handshake with the battery BMS. On a brand-new replacement pack, the charge IC may not have completed its first acceptance cycle, causing the boot sequence to stall or loop. This is not a fault with the terminal or the battery — it is the charge IC in pre-acceptance mode. Plug the terminal into mains power, let it reach a full charge state, then cold-boot. After one complete charge cycle, the BMS handshake is accepted and the PCI sequence completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stuck at 99% after installing a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA battery indicator locked at 99% on first charge is the T650p's charge IC operating in top-off mode on a new cell — it is not a defect. The IC holds the pack in a slow top-off phase until the cell voltage stabilises at the full-charge threshold, typically 8.40V across the 2S stack. Once that threshold is held for the required dwell time, the indicator steps to 100% and the IC switches to standby. If the indicator has not moved after 90 minutes on charge, disconnect mains, power the terminal off fully, reconnect mains, and allow a fresh charge cycle to begin from a cold state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922704474,"sku":"BWCS-VFP650BX-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922737242,"sku":"BWCS-VFP650BX-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922770010,"sku":"BWCS-VFP650BX-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VFP650BX-1.webp?v=1779757974"},{"product_id":"verifone-t650p-replacement-battery-74v-2600mah-li-ion","title":"VeriFone T650p Replacement Battery 7.4V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVeriFone T650p — 7.4V Li-ion Replacement Battery (INR18650-2S1P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2600mAh Li-ion replacement battery for the VeriFone T650p mobile payment terminal. It replaces OEM part number INR18650-2S1P and fits the T650p directly. Capacity is 2600mAh (19.24Wh), matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT650p platform fit:\u003c\/strong\u003e\n    The T650p uses a 7.4V two-cell series pack (2S1P configuration) with a BMS that handshakes with the terminal's charge controller on startup. This replacement uses the same cell arrangement and connector, so the terminal's charge IC recognises the pack without firmware errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through cold-start boot sequences and simulated transaction loads covering display, wireless radio, and thermal printer draws simultaneously. The BMS held stable across all three draw profiles without triggering overcurrent cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst transaction cycle after install:\u003c\/strong\u003e\n    Complete one full transaction — power on, process a card, print a receipt — before deploying in a live environment. The T650p maps battery capacity during normal operation, not during idle charging. That cycle lets the terminal set the charge indicator correctly so the gauge reflects actual state of charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe T650p runs a PCI-compliant boot sequence that includes a battery authentication handshake. On a fresh pack, the BMS may not have completed its first charge acceptance cycle, which causes the terminal to stall or loop at the boot screen. This is not a faulty battery — it means the BMS and the terminal's charge IC have not yet exchanged a full charge-discharge profile. Charge the terminal to 100%, power it off, then power it back on. That sequence clears the handshake flag and the boot completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal reboots mid-sale during receipt printing\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe thermal printer in the T650p pulls a sharp current spike the moment it fires — on top of the active wireless radio and display draw already running. If the battery voltage sags below the BMS's low-voltage trip threshold during that combined load, the BMS cuts output to protect the cells and the terminal reboots. This usually appears on a degraded original pack, but can also occur on a replacement that has not yet been fully charged. Charge to 8.35V (full pack voltage) before the first live deployment to give the BMS enough headroom to absorb the printer spike without tripping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922802778,"sku":"BWCS-VFP650BL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922835546,"sku":"BWCS-VFP650BL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922868314,"sku":"BWCS-VFP650BL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VFP650BL-1.webp?v=1779757974"},{"product_id":"sunmi-m2-replacement-battery-38v-3000mah-li-polymer","title":"Sunmi M2 Payment Terminal Compatible Battery 3.8V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSunmi M2 \/ T7820 — 3.8V Li-Polymer Replacement Battery (JKHS)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 3000mAh Li-Polymer battery for the Sunmi M2 and T7820 payment terminals. It replaces OEM part number JKHS and slots directly into the battery bay on both models. Capacity is 3000mAh (11.4Wh), matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM2 and T7820 compatibility:\u003c\/strong\u003e\n    Both terminals share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell covers both models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Sunmi boot sequence and ran multiple transaction loads including receipt printer motor draws. The BMS held voltage within spec and did not trip on printer activation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting the battery, complete one full transaction cycle before going live. The terminal maps battery capacity during normal operation and needs at least one complete power cycle to display an accurate charge indicator.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Sunmi M2 receipt printer draws a short, sharp current spike when it fires. On a new battery that hasn't completed its first charge-discharge cycle, the BMS may read that spike as an overcurrent event and cut output. This is a calibration issue, not a fault with the cell. Run the terminal through two or three complete transaction cycles — print included — and the BMS will normalise its overcurrent threshold. If reboots persist past the third cycle, check that the battery connector is fully seated and reading at least 3.7V at rest.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSunmi M2 won't power on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge slowly in storage. If the terminal has sat unused for several weeks or months, the cell voltage may have dropped below the BMS recovery threshold — typically around 2.5V — and the terminal will show no response at all. Connect the charging cable and leave it for 20–30 minutes without pressing the power button. The charge IC needs time to trickle-charge the cell back above the recovery threshold before the BMS will allow a normal boot. Once the screen shows a charging indicator, allow a full charge to 4.2V before powering on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922901082,"sku":"BWCS-SMP782BL-1","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415922933850,"sku":"BWCS-SMP782BL-2","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415922966618,"sku":"BWCS-SMP782BL-3","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMP782BL-1.webp?v=1779757974"},{"product_id":"pax-a930-replacement-battery-74v-2200mah-li-polymer","title":"PAX A930 Replacement Battery JTH-J128 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax A930 \/ A910 — 7.4V Li-Polymer Replacement Battery (JTH-J128)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2200mAh lithium-polymer replacement battery for the Pax A930 and A910 payment terminals. It fits the same slot and connector as the original JTH-J128 cell. Use it to restore full operation after the factory battery degrades or fails.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA930 and A910 shared platform:\u003c\/strong\u003e\n    Both terminals run the same 7.4V power rail, use the same physical housing dimensions, and share the BMS handshake protocol — so one cell covers both models without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full boot sequence on an A930 and monitored BMS communication. The charge IC accepted the cell within one complete power cycle, and the terminal reported state-of-charge without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-transaction calibration:\u003c\/strong\u003e\n    After fitting this battery, run one complete transaction from power-on through receipt print before placing the terminal in a live queue. The A930 maps battery capacity during normal operation — the charge indicator calibrates correctly only after at least one full power cycle under real load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A930's receipt printer pulls a short, sharp current spike at the moment printing starts. On a freshly installed cell, the BMS has not yet learned the battery's internal resistance profile, so it can read that spike as an overcurrent event and trip protection. This causes an unexpected reboot — right at the point of sale. Running two or three test transactions before going live gives the BMS enough data to stop treating normal printer draw as a fault condition.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal will not power on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-polymer cells self-discharge at roughly 2–3% per month. A terminal stored for several months can drop below the BMS recovery threshold — typically around 2.5V per cell — and the device will not respond to the power button at all. Connect the terminal to the original charger and leave it undisturbed for 30–45 minutes before attempting to power on. If the charge LED does not light within five minutes of connecting, check the charger output voltage is at or above 8.4V before replacing the battery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415922999386,"sku":"BWCS-PAX930BL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415923032154,"sku":"BWCS-PAX930BL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415923064922,"sku":"BWCS-PAX930BL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAX930BL-1.webp?v=1779757974"},{"product_id":"pax-s90-replacement-battery-74v-2200mah-li-ion","title":"Pax S90 Replacement Battery IS497 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax S90 — 7.4V Li-ion Replacement Battery (IS497)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 2200mAh Li-ion battery replaces the original IS497 cell in the Pax S90 portable payment terminal. It fits the S90 directly and restores full operating capacity for card transaction processing in retail and hospitality environments. Voltage and capacity match OEM spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS90 terminal fit:\u003c\/strong\u003e\n    The S90 uses a 7.4V two-cell Li-ion pack with a BMS handshake that communicates state-of-charge to the terminal's charge IC. This battery carries the same communication protocol, so the terminal reads capacity correctly without throwing a battery fault on the status screen.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge and discharge sequences on the S90, running card swipes, receipt prints, and wireless polling simultaneously. The BMS held stable through the combined current draw of the printer motor and the cellular modem without tripping overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installing this battery, run one complete transaction — tap or swipe through to receipt print — before deploying the terminal on a live till. The S90 maps battery capacity during normal operation and needs at least one full power cycle to display the charge indicator accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S90's receipt printer pulls a short but sharp current spike when the paper feed motor engages. On a freshly installed battery, the BMS hasn't yet profiled the cell and may interpret that spike as an overcurrent event, cutting power momentarily. This causes the terminal to reboot at the exact moment it tries to print — which looks like a software fault but is actually a BMS trip. Run five to ten dummy transactions on the bench before going live so the BMS can establish normal operating thresholds for the printer load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eS90 won't power on after sitting unused in a drawer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month. If the S90 sat dormant for several months, the cell voltage may have dropped below the BMS recovery threshold — typically around 2.5V per cell, or 5.0V pack total. At that point the BMS locks out discharge to protect the cell, and the terminal shows nothing when you press the power button. Connect the original Pax charger and leave it for at least 60 minutes without pressing any buttons; the charge IC will trickle-charge the pack back above the 6.0V recovery floor before switching to normal charge rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415923097690,"sku":"BWCS-PAS900BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415923130458,"sku":"BWCS-PAS900BL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415923163226,"sku":"BWCS-PAS900BL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAS900BL-1.webp?v=1779757951"},{"product_id":"pax-s900-replacement-battery-74v-2200mah-li-ion","title":"Pax S900 Compatible Battery 7.4V 2200mAh IS509","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePax S900 — 7.4V Li-ion Replacement Battery (IS509)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2200mAh Li-ion battery replaces the original IS509 cell in the Pax S900 portable payment terminal. The S900 is a mobile POS device used for card processing and tap payments in retail and hospitality environments. Voltage and capacity match the original spec exactly — no hardware modification required.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePax S900 fitment:\u003c\/strong\u003e\n    The S900 uses a dedicated battery bay with a keyed connector that only accepts the IS509 form factor. The BMS on the S900 mainboard checks cell voltage at boot — a mismatched or exhausted cell will prevent the PCI boot sequence from completing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the S900's full boot sequence, ran contactless and chip transactions, and triggered the receipt printer. The BMS accepted the cell without fault codes across all three draw events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After installation, complete one full transaction cycle before putting the terminal into live service. The S900 maps battery capacity during normal operation and needs at least one complete power cycle to display an accurate charge indicator on screen.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S900 receipt printer draws a short high-current burst when it fires — this is the most common cause of mid-transaction reboots on a new or degraded battery. If the cell voltage sags below the BMS cutoff threshold during that burst, the terminal treats it as an undervoltage fault and restarts. On a new cell, this usually resolves after one or two full charge-discharge cycles as the cell reaches its rated capacity. If reboots continue after three cycles, check that the battery connector is fully seated — a loose contact increases resistance and worsens voltage sag under load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eS900 not powering on after sitting unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge over time, and if the S900 has been left uncharged for several months, the cell voltage may drop below the BMS recovery threshold — typically around 2.5V per cell. When this happens, the terminal shows no response on the power button and no charge indicator on the screen. Connect the terminal to its dock or direct charger and leave it for 20–30 minutes without pressing anything — most S900 BMS circuits include a trickle pre-charge mode that recovers cells down to approximately 2.0V. If the charge LED does not activate within 30 minutes, the cell is likely below recovery threshold and the battery needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415923195994,"sku":"BWCS-PAX509BL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415923228762,"sku":"BWCS-PAX509BL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415923261530,"sku":"BWCS-PAX509BL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PAX509BL-1.webp?v=1779757951"},{"product_id":"eservice-smart-d220-replacement-battery-38v-3000mah-li-polymer","title":"Eservice Smart D220 Replacement Battery 3.8V 3000mAh IS707","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEservice Smart D220 — 3.8V Li-Polymer Replacement Battery (IS707)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 3000mAh Li-Polymer battery replaces the original IS707 cell in the Eservice Smart D220 payment terminal. It fits the Smart D220 directly, using the same connector and BMS communication protocol as the factory unit. Capacity is 3000mAh (11.4Wh), sourced to match OEM specifications.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSmart D220 fitment:\u003c\/strong\u003e\n    The Smart D220 uses a single-cell Li-Polymer pack at 3.8V nominal. The IS707 form factor — 74.60 x 53.70 x 4.70mm — occupies the full battery bay. Any deviation in thickness or connector pinout will cause BMS rejection at boot, so physical and electrical match both matter here.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through card-read, receipt print, and wireless transaction sequences. The BMS held steady through the combined current draw of the printer motor and radio stack without tripping overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst deployment tip:\u003c\/strong\u003e\n    After fitting this battery, complete one full transaction cycle before putting the terminal into live service. The Smart D220 maps battery capacity during normal operation and requires at least one complete power cycle to calibrate the charge indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Smart D220 runs a PCI compliance check during startup that includes a battery handshake. A new cell that hasn't completed a full charge-discharge cycle may report state-of-charge data the terminal treats as out of range. This causes the boot sequence to stall or loop before reaching the payment screen. Charge the battery to 100%, power the terminal off cleanly, then restart — one full boot-charge cycle usually clears the handshake flag.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTerminal rebooting mid-transaction during receipt printing\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe receipt printer motor draws a short burst of current well above the idle load of the display and wireless radio. On a degraded or partially discharged battery, this spike can push cell voltage below the BMS undervoltage threshold, triggering an immediate protection cutoff — which looks like a reboot. If this happens consistently, check that the cell is above 3.6V before high-volume transaction periods. A cell sitting at 3.5V under idle load will not hold voltage through a printer motor start surge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415923490906,"sku":"BWCS-ESD220BL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415923523674,"sku":"BWCS-ESD220BL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415923556442,"sku":"BWCS-ESD220BL-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ESD220BL-1.webp?v=1779757951"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/collections\/BW-CS-CTA320SL-6.webp?v=1780879965","url":"https:\/\/batteryweb.com\/collections\/payment-terminal.oembed?page=13","provider":"BatteryWeb","version":"1.0","type":"link"}