{"product_id":"lenovo-ideapad-100s-14ibr-replacement-battery-76v-4100mah-li-polymer","title":"Lenovo IdeaPad 100S-14IBR Compatible Battery 7.6V 4100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo IdeaPad 100S-14IBR — 7.6V Li-Polymer Replacement Battery (0813002)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V, 4100mAh (31.16Wh) Li-Polymer battery for the Lenovo IdeaPad 100S-14IBR 14-inch notebook. It replaces OEM part numbers 0813002, 5B10K65026, and NC140BW1-2S1P. Fit covers the 80R9 series variants, including the 80R9002WGE and 80R90031PH builds.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIdeaPad 100S-14IBR 80R9 series compatibility:\u003c\/strong\u003e\n    All 80R9 variants share the same 7.6V two-cell Li-Polymer architecture, identical connector pinout, and the same BMS handshake protocol. Swapping between sub-models carries no electrical risk — the BMS negotiation is identical across the full 80R9 range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, discharge, and suspend-resume on an IdeaPad 100S-14IBR unit. The BMS accepted the cell without fault codes, and charge current ramped normally from bulk to trickle at the correct voltage threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install recalibration step:\u003c\/strong\u003e\n    After fitting, run the laptop down to hibernate cutoff on battery only, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health 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 replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IdeaPad 100S-14IBR stores battery health data in EEPROM on the old cell. When a new cell goes in, the BIOS reads stale EEPROM values and flags the battery as degraded before it has run a single cycle. This is a data mismatch, not a cell fault. Running one full discharge-to-hibernate followed by a full uninterrupted charge resets the learn cycle. After two to three full cycles, the BIOS recalculates health against real cell data and the warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on screen\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 reports 25% remaining, but the cell voltage has already dropped below the minimum load threshold under combined CPU and display draw. The laptop shuts down to protect the cell — not because the battery is faulty. Run two full discharge-to-hibernate cycles without interruption. After calibration, the fuel gauge tracks the real voltage cliff and the OS percentage reading aligns with actual charge state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409519706202,"sku":"BWCS-LNP148NB-1","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409519738970,"sku":"BWCS-LNP148NB-2","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409519771738,"sku":"BWCS-LNP148NB-3","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LNP148NB-1.webp?v=1779579940","url":"https:\/\/batteryweb.com\/products\/lenovo-ideapad-100s-14ibr-replacement-battery-76v-4100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}