{"product_id":"huawei-honor-x10-replacement-battery-385v-4200mah-li-polymer","title":"HB476586ECW Huawei Honor X10 Replacement Battery 3.85V 4200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHuawei Honor X10 \/ X10 5G — 3.85V Li-Polymer Replacement Battery (HB476586ECW)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 4200mAh lithium-polymer cell is a direct swap for the original HB476586ECW battery in the Huawei Honor X10 and Honor X10 5G. It fits the TEL-AN00 and TEL-TN00 board variants. Dimensions are 84.00 × 63.50 × 4.50mm — verify this against your original cell before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHonor X10 and X10 5G coverage:\u003c\/strong\u003e\n    Both the standard and 5G variants of the Honor X10 share the same battery bay dimensions, connector pinout, and BMS handshake protocol, so one cell covers both TEL-AN00 and TEL-TN00 board builds without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Honor X10 platform. The BMS accepted the cell without error flags, and the fuel gauge IC tracked state-of-charge without anomalies across the full voltage range from 4.40V to 3.00V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst cycle fast-charge protocol:\u003c\/strong\u003e\n    After installation, disable fast charging in the phone's battery settings and complete one full discharge-charge cycle at standard current. This lets the fuel gauge IC map the new cell's discharge curve before Huawei's proprietary fast-charge protocol pushes elevated 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 Honor X10 after a cell replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Honor X10 fuel gauge IC holds a discharge curve learned from the old, degraded cell. When a fresh 4200mAh cell is installed, the IC's stored curve no longer matches actual cell voltage behaviour. At around 20–30% reported charge, the new cell's open-circuit voltage drops through a steeper cliff than the IC expects under modem and display load. The phone interprets this as a critical low-voltage event and shuts down. One complete discharge-charge cycle at standard current — without fast charging — forces the coulomb counter to re-learn the new curve and eliminates these premature shutdowns.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHuawei fast charging not activating on first cycle after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eHuawei's proprietary fast-charge protocol performs a handshake between the charge IC and the battery BMS before elevating current. On the first charge after a cell swap, the new BMS has not yet completed this negotiation sequence, so the charge IC defaults to standard 5V\/1A input. This is not a fault with the cell or the charger. Charge the phone once at standard current until full, then disconnect and reconnect the original Huawei fast-charge adapter — the handshake completes on the second cycle and fast charging activates normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391985352794,"sku":"BWCS-HUX100SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391985385562,"sku":"BWCS-HUX100SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391985418330,"sku":"BWCS-HUX100SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HUX100SL-1.webp?v=1779142719","url":"https:\/\/batteryweb.com\/products\/huawei-honor-x10-replacement-battery-385v-4200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}