{"product_id":"pocophone-poco-m2-pro-replacement-battery-385v-4800mah-li-polymer","title":"Pocophone Poco M2 Pro Replacement Battery 3.85V 4800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePocophone Poco M2 Pro \/ M2003J6CI — 3.85V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4800mAh (18.48Wh) Li-Polymer battery for the Pocophone Poco M2 Pro, Poco M2 Pro Premium, and M2003J6CI. It replaces the original cell when the phone shuts down unexpectedly, stops holding charge, or drains far faster than it used to. Dimensions are 89.10 × 64.80 × 4.65mm — confirm clearance before installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePoco M2 Pro \/ M2003J6CI fit:\u003c\/strong\u003e\n    The M2 Pro and its regional M2003J6CI variant share the same battery bay geometry, connector pinout, and BMS handshake protocol. One cell covers both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge-discharge cycles on the M2 Pro platform and confirmed the BMS accepted the cell without triggering a fault. The coulomb counter initialised correctly after the first full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fast-charge caution:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and complete one full discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging begins pushing current into an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the Poco M2 Pro after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Poco M2 Pro's fuel gauge IC retains the discharge curve from the old cell after a replacement. When the modem fires or the display peaks, the new cell's actual voltage drops below the cutoff threshold faster than the gauge expects — so the phone kills power while still showing charge remaining. This is a calibration gap, not a faulty cell. Run two full discharge-charge cycles at standard rate and the coulomb counter recalibrates to the new cell's real voltage floor.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charging not engaging on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a cell swap, the Poco M2 Pro's charge IC sometimes refuses to negotiate the fast-charge protocol on the first cycle because the BMS presents a high-impedance state on a freshly installed cell. The phone falls back to standard 5V charging as a safety measure. This is normal behaviour and resolves after one complete cycle. Once the BMS confirms cell state, fast charging re-engages automatically on the next plug-in — no settings change needed.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391890227290,"sku":"BWCS-MUR910SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391890260058,"sku":"BWCS-MUR910SL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391890292826,"sku":"BWCS-MUR910SL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MUR910SL-1.webp?v=1779142720","url":"https:\/\/batteryweb.com\/products\/pocophone-poco-m2-pro-replacement-battery-385v-4800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}