{"product_id":"lenovo-ideapad-1-11igl05-replacement-battery-75v-4100mah-li-polymer","title":"Lenovo IdeaPad 1-11IGL05 Compatible Battery L19C2PF1 7.5V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo IdeaPad 1-11IGL05 \/ 1-14IGL05 — 7.5V Li-Polymer Replacement Battery (L19C2PF1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.5V, 4100mAh (30.75Wh) Li-Polymer battery for the Lenovo IdeaPad 1-11IGL05, IdeaPad 1-14IGL05, and the broader IdeaPad 1 series. It replaces OEM part numbers L19C2PF1, L19M2PF1, L19L2PF1, SB10W42962, and several related 5B10W codes. If your original cell has degraded, swollen, or stopped holding charge, this swap restores full unplugged use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIdeaPad 1 series compatibility:\u003c\/strong\u003e\n    The 11-inch and 14-inch IdeaPad 1 variants share the same 7.5V two-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol — which is why one part number family covers both chassis sizes. The physical footprint at 210.00 × 161.30 × 3.90mm fits the internal tray on both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge-discharge cycles under simulated CPU and display load. The BMS held voltage within spec across the full state-of-charge range, and the protection circuit tripped correctly at both over-voltage and under-voltage thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on IdeaPad 1:\u003c\/strong\u003e\n    After fitting, discharge the laptop fully until it hibernates, then charge uninterrupted to 100% without interruption. This single learn cycle resets the BIOS fuel gauge against the new cell and clears the inaccurate battery health warning that almost always appears after a 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 poor battery health immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IdeaPad 1 BIOS stores battery health data from the old cell's EEPROM and doesn't automatically wipe it when a new cell is fitted. On first boot, it reads stale cycle-count and capacity data from the previous battery's history and flags the new cell as degraded. This is a firmware read issue, not a fault with the replacement cell. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — after that cycle, the BIOS recalibrates and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% remaining shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't yet mapped its charge curve to the new cell's actual voltage profile. Under combined CPU and display load, the cell hits a voltage cliff that the uncalibrated gauge doesn't predict — the system reads 25% but the cell voltage has already dropped below the safe cutoff. The OS shuts down to protect the cell before the displayed percentage reaches zero. Complete two full discharge-to-hibernate and full-recharge cycles; the gauge IC recalibrates its discharge curve against the new cell and the premature shutdowns stop. Target cell voltage at full charge: 8.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409654874202,"sku":"BWCS-LVP114NB-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409654906970,"sku":"BWCS-LVP114NB-2","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409654939738,"sku":"BWCS-LVP114NB-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LVP114NB-1.webp?v=1779580312","url":"https:\/\/batteryweb.com\/products\/lenovo-ideapad-1-11igl05-replacement-battery-75v-4100mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}