{"product_id":"lenovo-chromebook-n21-replacement-battery-111v-3200mah-li-polymer","title":"Lenovo Chromebook N21 L14C3P60 Compatible Battery 11.1V 3200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo Chromebook N21 Series — 11.1V Li-Polymer Replacement Battery (L14C3P60)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 3200mAh (35.52Wh) Li-Polymer battery replaces the original cell in the Lenovo Chromebook N21 and N21-80MG. It matches OEM part numbers L14C3P60, 5B10H45092, 5B10H33230, 5B10K10155, and L14M3P23. If your N21 no longer holds a charge or the OS flags a battery fault, this is the direct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eN21 and N21-80MG fitment:\u003c\/strong\u003e\n    Both variants share the same 11.1V three-cell architecture, connector pinout, and BMS handshake protocol. One battery covers both SKUs 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 full charge and discharge cycles on the N21 platform. The BMS communicated correctly with ChromeOS, reported accurate state-of-charge, and held voltage within spec through the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle on the N21:\u003c\/strong\u003e\n    After fitting, run the Chromebook down to automatic hibernate cutoff, then charge uninterrupted to 100%. This triggers the BIOS battery learn cycle and clears the inaccurate health warning that appears in ChromeOS after any cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eChromeOS reporting battery health as poor immediately after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Lenovo N21's BIOS carries EEPROM data from the original cell, including its accumulated wear history. When a new cell is installed, that stored data no longer matches actual battery state, so ChromeOS flags poor health before any real degradation has occurred. Running one full discharge-to-hibernate then a clean charge to 100% resets the learn cycle. After two to three calibration cycles, the health indicator reflects the new cell accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eN21 shuts down abruptly with 20–30% charge still showing\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge loses track of real state-of-charge under CPU and display load, reads too high, then the cell hits its low-voltage cutoff without warning. It is not a fault with the replacement cell. Run two full discharge-to-hibernate and charge-to-100% cycles — by the third cycle, the gauge IC recalibrates and the percentage reading stabilises against real cell voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409720639578,"sku":"BWCS-LNV210NB-1","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409720672346,"sku":"BWCS-LNV210NB-2","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409720705114,"sku":"BWCS-LNV210NB-3","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LNV210NB-1.webp?v=1779580516","url":"https:\/\/batteryweb.com\/products\/lenovo-chromebook-n21-replacement-battery-111v-3200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}