{"product_id":"huawei-matebook-replacement-battery-76v-4300mah-li-polymer","title":"Huawei MateBook HB25B7N4EBC Compatible Battery 7.6V 4300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHuawei MateBook \/ HZ-W19 — 7.6V Li-Polymer Replacement Battery (HB25B7N4EBC)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V 4300mAh (32.68Wh) lithium-polymer replacement battery for the Huawei MateBook and HZ-W19 laptop. It replaces OEM part number HB25B7N4EBC using the same slim 2.55mm cell profile the chassis requires. Fits the main battery bay without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMateBook and HZ-W19 compatibility:\u003c\/strong\u003e\n    Both models share the same 7.6V power rail, the same HB25B7N4EBC connector pinout, and the same BMS handshake protocol — one cell fits both without adapter or firmware change.\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 a MateBook unit. The BMS accepted the cell without fault codes, balanced cells correctly across the pack, and hit the full 32.68Wh rated capacity within three cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run the MateBook down to hibernate cutoff — do not force shutdown — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false \"poor health\" or \"unknown battery\" warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MateBook's BIOS stores charge history and health data in EEPROM tied to the original cell. When a new cell goes in, that old data stays — the BIOS reads it and flags a health warning even though the cell is new. This is not a fault with the replacement. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100%. After one or two cycles, the BIOS learn cycle rewrites the EEPROM data against the new cell and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMateBook shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops sharply under full CPU and display load — the fuel gauge still reads 20–30% by percentage, but the cell cannot hold voltage above the BMS cutoff threshold at that draw level. It is a voltage cliff: the cell hits cutoff before the percentage counter reaches zero. The fix is calibration — discharge fully to hibernate, not a forced shutdown, then charge to 100% without interruption. After two or three calibration cycles, the fuel gauge IC maps the new cell's voltage curve accurately and the early shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409722671194,"sku":"BWCS-HUT190NB-1","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409722703962,"sku":"BWCS-HUT190NB-2","price":68.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409722736730,"sku":"BWCS-HUT190NB-3","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HUT190NB-1.webp?v=1779580558","url":"https:\/\/batteryweb.com\/products\/huawei-matebook-replacement-battery-76v-4300mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}