{"product_id":"huawei-honor-v20-replacement-battery-385v-3900mah-li-polymer","title":"HB426489ECW Huawei Honor V20 Replacement Battery 3.85V 3900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHuawei Honor V20 \/ View 20 — 3.85V Li-Polymer Replacement Battery (HB426489ECW)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3900mAh Li-Polymer cell built to replace the original HB426489ECW \/ HB426489EEW battery in the Huawei Honor V20, View 20, PCT-TL10, and PCT-AL10. It runs at 3.85V nominal and delivers 15.02Wh. If your phone is shutting down unexpectedly, losing charge rapidly, or the original cell has swollen, this cell slots into the same footprint.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePCT-TL10, PCT-AL10, Honor V20, View 20 compatibility:\u003c\/strong\u003e\n    These model variants share the same battery bay dimensions (85.80 × 63.10 × 3.96mm), the same 3.85V single-cell architecture, and the same BMS connector pinout — which is why one part number covers the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge-discharge cycle on the Honor V20 platform and confirmed the BMS handshake, charge termination at 4.35V, and low-voltage cutoff behaviour matched OEM spec without triggering protection faults.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate — this gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging begins on an uncalibrated coulomb counter.\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 V20 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still running the discharge curve it learned from the old, degraded cell. The new cell hits a voltage cliff under modem or display load that the IC does not expect at that reported percentage. The phone interprets the voltage drop as empty and cuts power. One full discharge to automatic shutdown, followed by a full charge without interruption, resets the coulomb counter and clears this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHuawei fast charge not activating on first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eHuawei's proprietary charging protocol negotiates with the battery BMS on the first connection. A new BMS may not complete that handshake immediately if the cell voltage is below the threshold the charge IC expects at startup. Plug in using the original Huawei charger and cable — third-party cables often lack the correct impedance for protocol negotiation. If fast charge still does not activate after the first full cycle, check that the connector is fully seated, as even slight misalignment breaks the data pin contact at 3.85V nominal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391989448794,"sku":"BWCS-HUH210SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391989481562,"sku":"BWCS-HUH210SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391989514330,"sku":"BWCS-HUH210SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HUH210SL-1.webp?v=1779142762","url":"https:\/\/batteryweb.com\/products\/huawei-honor-v20-replacement-battery-385v-3900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}