{"product_id":"wiko-f200-replacement-battery-37v-1100mah-li-ion","title":"Wiko F200 Replacement Battery B2860 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWiko F200 — 3.7V Li-ion Replacement Battery (B2860)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1100mAh Li-ion replacement battery for the Wiko F200 smartphone. It uses OEM part number B2860 and matches the original cell's dimensions at 76.30 × 44.00 × 4.15mm. Fit this when the original cell no longer holds charge or fails to power the device through normal use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF200 platform fit:\u003c\/strong\u003e\n    The F200 uses a fixed connector layout and BMS communication line matched to the B2860 cell specification. Voltage rails, protection circuit pinout, and physical footprint are verified against the original cell before shipping.\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 under modem-active load conditions. The BMS held voltage above the 3.0V cutoff threshold under sustained screen-on and call simulation without triggering a protection trip.\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 its discharge curve against the new cell before high-current charging begins on an uncalibrated reference.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the F200 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe F200's fuel gauge IC stores a learned discharge curve from the old cell. When a new cell goes in, the IC keeps reading against that old curve, so percentage figures are inaccurate until it relearns. This shows up as the phone sitting at 100% for an unusually long time, then dropping fast toward the end. One full discharge to auto-shutdown followed by a full uninterrupted charge forces the coulomb counter to write a new reference curve. After that cycle, percentage reporting stabilises.\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 modem or display draws a current spike the cell cannot sustain without the voltage collapsing below the BMS cutoff threshold — even though the displayed percentage suggests charge remains. A freshly installed cell with an uncalibrated fuel gauge IC is most vulnerable to this on the first few cycles. The BMS reads a real voltage collapse, not a gauge error, and cuts output to protect the cell. Run one full discharge-to-shutdown and full recharge cycle — the gauge IC recalibrates and the cutoff trips accurately from that point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391879053402,"sku":"BWCS-WKF210SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391879086170,"sku":"BWCS-WKF210SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391879118938,"sku":"BWCS-WKF210SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WKF210SL-1.webp?v=1779142499","url":"https:\/\/batteryweb.com\/products\/wiko-f200-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}