{"product_id":"lg-4ne1-replacement-battery-37v-900mah-li-ion","title":"LG 4NE1 Replacement Battery 3.7V 900mAh LGLI-ABEM","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLG 4NE1 \/ DB-230 — 3.7V Li-ion Replacement Battery (LGLI-ABEM)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 900mAh Li-ion replacement battery for the LG 4NE1 and DB-230 smartphones. It replaces OEM part number LGLI-ABEM. Fit this cell when the original no longer holds charge, causes unexpected shutdowns, or the phone refuses to power on.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4NE1 and DB-230 platform:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers both. The voltage rail sits at 3.7V nominal, matching the charge IC on either board.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle and confirmed the BMS communicated correctly with the charge IC. Cutoff voltage held at the expected threshold — no false full-charge signals.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    Disable fast charging for your first complete discharge-charge cycle after fitting this cell. The fuel gauge IC on the 4NE1 calibrates its internal model against the cell's discharge curve on that first run — letting it complete that cycle at standard current gives the coulomb counter accurate data before any high-current session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the 4NE1 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a learned discharge curve from the previous cell. When a new cell goes in, that stored curve no longer matches the actual electrochemical behaviour of the replacement. The result is percentage readings that jump, stall, or read 100% long before the cell is actually full. One full discharge down to auto-shutoff followed by an uninterrupted charge to 100% resets the coulomb counter and brings readings back in line.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the modem radio and screen backlight draw a current spike the cell can't sustain when its actual voltage drops below roughly 3.5V — even though the OS gauge still shows charge remaining. The fuel gauge IC hasn't yet mapped the new cell's voltage-to-capacity curve accurately, so it misreports usable capacity. The phone interprets the sudden voltage sag as a hard cutoff and shuts down. Complete two full discharge-charge cycles and the gauge recalibrates — shutdowns at false-high percentages should stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405143965786,"sku":"BWCS-4NE1SL-1","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43405143998554,"sku":"BWCS-4NE1SL-2","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43405144031322,"sku":"BWCS-4NE1SL-3","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-4NE1SL-big.webp?v=1779370262","url":"https:\/\/batteryweb.com\/products\/lg-4ne1-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}