{"product_id":"oppo-find-x-replacement-battery-385v-3600mah-li-polymer","title":"BLP671 Oppo Find X Replacement Battery 3.85V 3600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOppo Find X Series — 3.85V Li-Polymer Replacement Battery (BLP671)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThe BLP671 is a 3.85V, 3600mAh (13.86Wh) lithium-polymer cell that fits the Oppo Find X, Find X Dual SIM, Find X Dual SIM TD-LTE, and PAFT00. It replaces a degraded or failed original cell to restore full display, processor, and wireless operation. Dimensions are 61.12 × 60.30 × 5.76mm — confirm clearance before installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFind X platform fit:\u003c\/strong\u003e\n    All listed Find X variants share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell covers the entire group 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 charge and discharge on a Find X unit, confirming BMS communication, charge acceptance across the full 3.85V nominal curve, and clean cutoff at low-cell voltage.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\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 against the new cell's discharge curve before high-current 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 Find X reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Find X uses a coulomb-counter fuel gauge IC that builds its capacity model against the original cell's discharge curve over hundreds of cycles. When a new cell goes in, the IC is still running the old model. The percentage readout can appear stuck, jump erratically, or plateau for long periods. One full uninterrupted discharge-to-charge cycle — without fast charging — lets the IC reset its reference table against the new cell.\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 screen load. The phone reads 25% state of charge but the actual cell voltage under load dips below the shutdown threshold. It is not a faulty cell; it is a calibration gap. Run one full cycle without interruption and the IC will anchor its low-voltage cutoff to the correct point on the new discharge curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392015138906,"sku":"BWCS-OPX100SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392015171674,"sku":"BWCS-OPX100SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392015204442,"sku":"BWCS-OPX100SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPX100SL-1.webp?v=1779142904","url":"https:\/\/batteryweb.com\/products\/oppo-find-x-replacement-battery-385v-3600mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}