{"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","url":"https:\/\/batteryweb.com\/products\/verifone-cm5p-replacement-battery-37v-6800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}