{"product_id":"pocophone-poco-f2-pro-5g-replacement-battery-385v-4400mah-li-polymer","title":"Pocophone Poco F2 Pro 5G Replacement Battery 3.85V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePocophone Poco F2 Pro 5G — 3.85V Li-Polymer 4400mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V Li-Polymer cell rated at 4400mAh (16.94Wh), sized at 76.40 × 63.20 × 5.20mm to fit the Poco F2 Pro 5G battery bay. It replaces the original cell when the phone no longer holds sufficient charge or shuts down unexpectedly under load. Voltage, connector, and physical dimensions match the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePoco F2 Pro 5G fit:\u003c\/strong\u003e\n    The F2 Pro uses a sealed back panel with a specific flex connector orientation tied to the motherboard's fuel gauge IC. This cell matches that connector pinout and the impedance profile the charge IC expects, so the BMS handshake completes on first 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 and discharge on the F2 Pro platform, monitoring BMS communication and charge IC behaviour. The cell accepted both standard and fast-charge current without triggering thermal cutoff or charge termination errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fast-charge lockout:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate its coulomb counter against the new cell's discharge curve before high-current fast charging pushes 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\"\u003eWhy the Poco F2 Pro reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the F2 Pro stores a learned discharge curve from the original cell. When you install a new cell, the IC still references that old curve, so percentage readings are inaccurate until it relearns. The fix is one full uninterrupted discharge down to automatic shutdown, followed by a full charge to 100% without interruption. After that cycle, the coulomb counter resets its reference points against the new cell's actual capacity curve. Percentage accuracy stabilises within two to three cycles.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet mapped the new cell's voltage cliff — the point where cell voltage drops sharply under modem or display load. The phone's low-voltage protection trips before the reported percentage reaches zero, cutting power abruptly. Run two full discharge-charge cycles without interruption to let the IC map the actual voltage-to-capacity curve of the new cell. After calibration, the OS reads the voltage cliff correctly and the shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391947178074,"sku":"BWCS-MUK310SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391947210842,"sku":"BWCS-MUK310SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391947243610,"sku":"BWCS-MUK310SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MUK310SL-1.webp?v=1779142720","url":"https:\/\/batteryweb.com\/products\/pocophone-poco-f2-pro-5g-replacement-battery-385v-4400mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}