{"product_id":"lenovo-edge-15-replacement-battery-74v-5800mah-li-ion","title":"Lenovo L13L4P61 ThinkPad Edge 15 Replacement Battery 7.4V 5800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo Edge 15 \/ Flex 2 Pro-15 — 7.4V Li-ion Replacement Battery (L13L4P61)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 5800mAh (42.92Wh) Li-ion replacement battery for the Lenovo ThinkPad Edge 15 and Flex 2 Pro-15 notebook series. It fits models including Edge 15 80H1 and Edge 15 80K9. OEM part numbers L13L4P61, L13S4P61, L13M4P61, and 2ICP3\/86\/94-2 all apply to this cell configuration.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEdge 15 and Flex 2 Pro-15 compatibility:\u003c\/strong\u003e\n    Both the Edge 15 and Flex 2 Pro-15 lines share the same 7.4V two-cell architecture, connector pinout, and BMS handshake protocol — so one cell covers both platforms without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an Edge 15 80H1 unit. The BMS completed its handshake within two charge cycles, and the EC correctly reported cell voltage and state-of-charge without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle on Lenovo Edge 15:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to hibernate cutoff, 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 poor battery health immediately after swap on Edge 15\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Edge 15 BIOS reads health data stored in the old cell's EEPROM and compares it against the new cell's reported parameters at first boot. Because the new cell presents a fresh EEPROM with no cycle history, the BIOS interprets the mismatch as a fault. This is not a defective cell — it is a calibration gap. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100%, and the BIOS learn cycle will overwrite the stale EEPROM baseline with accurate data from the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% shown after installing replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still using the old cell's discharge curve to predict remaining capacity. The new cell hits a voltage cliff under combined CPU and display load at a different point than the old cell did. The fuel gauge reads 20–30% on the old curve, but the actual cell voltage has already dropped below the EC's cutoff threshold. Run two to three full discharge and charge cycles — by the third cycle, the fuel gauge IC recalibrates against the new cell's curve and the shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409757503578,"sku":"BWCS-LVE150NB-1","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409757536346,"sku":"BWCS-LVE150NB-2","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409757569114,"sku":"BWCS-LVE150NB-3","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LVE150NB-1.webp?v=1779580733","url":"https:\/\/batteryweb.com\/products\/lenovo-edge-15-replacement-battery-74v-5800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}