{"product_id":"resistacap-inc-n250aaaf3wl-replacement-battery-36v-700mah-ni-mh","title":"Resistacap Inc N250AAAF3WL Compatible Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eResistacap Inc N250AAAF3WL — 3.6V Ni-MH Replacement Battery (CUSTOM-122)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH replacement battery for the Resistacap Inc N250AAAF3WL payment terminal. It fits the N250AAAF3WL directly and restores battery-backed operation to the terminal. Voltage and connector match the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eN250AAAF3WL platform fit:\u003c\/strong\u003e\n    The N250AAAF3WL uses a 3.6V Ni-MH cell with a specific connector orientation and BMS handshake tied to that voltage rail. Swapping in a cell outside that spec causes the terminal to reject the battery or loop at the boot screen. This cell matches the voltage rail and connector the terminal expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge-discharge cycle on a payment terminal test rig. The BMS accepted the handshake on first boot, charge acceptance was normal, and the terminal completed its PCI boot sequence without interruption.\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 this terminal in a live environment. The N250AAAF3WL 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 not completing PCI boot sequence after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe N250AAAF3WL runs a PCI security check during boot that includes a battery status read. If the BMS on the new cell hasn't completed its first handshake, the terminal can stall or loop at this screen. This isn't a fault with the cell — it's the terminal waiting for the BMS to confirm a valid charge state. Allow the terminal to complete one full charge cycle after installation. Once the cell reaches a stable charge, the boot sequence completes normally.\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\"\u003eOn a fresh Ni-MH cell, the charge IC in the N250AAAF3WL enters top-off mode near full capacity and holds the display at 99% for an extended period. This is normal charge controller behaviour — it's applying a trickle current to top the cell off before declaring 100%. No intervention is needed. Once the top-off phase completes, the indicator will move and stabilise at full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415941677146,"sku":"BWCS-RNC250BL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415941709914,"sku":"BWCS-RNC250BL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415941742682,"sku":"BWCS-RNC250BL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RNC250BL_1.webp?v=1779758202","url":"https:\/\/batteryweb.com\/products\/resistacap-inc-n250aaaf3wl-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}