{"product_id":"lenovo-yoga-slim-7-carbon-14acn6-82l0005bvn-replacement-battery-772v-7550mah-li-polymer","title":"Lenovo Yoga Slim 7 Carbon L20C4PF2 Replacement Battery 7.72V 7550mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo Yoga Slim 7 Carbon 14ACN6 — 7.72V Li-Polymer Replacement Battery (L20C4PF2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.72V, 7550mAh (58.29Wh) lithium-polymer cell for the Lenovo Yoga Slim 7 Carbon 14ACN6 series ultrabook. It replaces OEM part numbers L20C4PF2, L20D4PF2, L20M4PF2, and 8SSB11C66153. If your original cell has lost capacity, fails to hold charge, or the laptop won't run on battery at all, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eYoga Slim 7 Carbon 14ACN6 compatibility:\u003c\/strong\u003e\n    The 82L0 series shares a common battery bay footprint, connector pinout, and BMS handshake protocol across all regional variants — 82L0005BVN, 82L0005DGE, 82L0005RMX, and 82L0CTO1WW among them. The same L20-series cell seats and communicates identically across those SKUs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles on this cell against the Yoga Slim 7 Carbon 14ACN6 platform. The BMS completed full charge handshake without error, charge termination triggered correctly at capacity, and the fuel gauge IC accepted the cell without throwing unknown device flags on the first cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap calibration on the 14ACN6:\u003c\/strong\u003e\n    After installing this cell, run one full discharge to hibernate-cutoff — do not interrupt — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Yoga Slim 7 Carbon's embedded controller reads cycle count and wear data stored in the old cell's EEPROM. When a new cell goes in, that data resets — the controller interprets zero cycles and mismatched charge history as a degraded or unknown cell. This is a firmware read issue, not a defect in the replacement battery. Running a full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the BIOS one complete learn cycle. After one or two full cycles, the health indicator corrects itself.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on the gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve yet. The gauge maps percentage to voltage thresholds learned from the old cell — when the new cell hits its own low-voltage cliff, the system cuts out before the displayed percentage reaches zero. It looks like a bad battery but it's a calibration gap. Run two to three full discharge-to-hibernate cycles without interruption. The fuel gauge IC recalibrates its curve against the new cell, and the shutdown point drops back to under 5% where it belongs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409571086426,"sku":"BWCS-LYS714NB-1","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409571119194,"sku":"BWCS-LYS714NB-2","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409571151962,"sku":"BWCS-LYS714NB-3","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LYS714NB-1.webp?v=1779580092","url":"https:\/\/batteryweb.com\/products\/lenovo-yoga-slim-7-carbon-14acn6-82l0005bvn-replacement-battery-772v-7550mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}