{"product_id":"lenovo-ideapad-u410-replacement-battery-74v-7900mah-li-polymer","title":"Lenovo IdeaPad U410 Compatible Battery L10M4P11 7.4V 7900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLenovo IdeaPad U410 — 7.4V Li-Polymer Replacement Battery (L10M4P11)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 7900mAh (58.46Wh) lithium-polymer battery replaces the original cell in the Lenovo IdeaPad U410 ultrabook. It fits the standard U410 as well as specific variants including the i5-3317U, 25-203730, and Touch-59372989 models. Cross-references include L10M4E21, L09C4B21, 40Y7903, and 2ICP4\/51\/161-2.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIdeaPad U410 platform fit:\u003c\/strong\u003e\n    All U410 variants listed share the same 7.4V two-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol. The same physical cell and EEPROM communication spec applies across the standard chassis and Touch subvariant.\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 on a U410 chassis. The BMS accepted the new cell without error flags, the protection circuit tripped correctly at low-voltage cutoff, and charge termination engaged at full capacity without anomaly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the U410:\u003c\/strong\u003e\n    After fitting, run the laptop down to hibernate-cutoff on battery only — no AC during discharge. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false \"poor 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\"\u003eWhy the U410 shuts down at 20–30% charge remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated against the old depleted cell. The new cell has a steeper voltage curve than the degraded one the IC learned from. Under combined CPU and display load, the voltage drops sharply in a way the miscalibrated gauge reads as empty. The fix is two full discharge-to-hibernate and uninterrupted charge cycles — after that the gauge IC maps the correct curve and shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting wrong Wh rating after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Wh value shown in BIOS or Lenovo Vantage comes from EEPROM data written at the factory, not from a live measurement of the new cell. A replacement cell carries its own EEPROM rated value, which may differ from the original. This is a data mismatch, not a fault — the cell still delivers its full 58.46Wh. If the figure matters for asset tracking, one calibration cycle after install will prompt the firmware to update the displayed value.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409794138202,"sku":"BWCS-LVU410NB-1","price":83.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409794170970,"sku":"BWCS-LVU410NB-2","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409794203738,"sku":"BWCS-LVU410NB-3","price":110.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LVU410NB-1.webp?v=1779580888","url":"https:\/\/batteryweb.com\/products\/lenovo-ideapad-u410-replacement-battery-74v-7900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}