{"product_id":"acer-liquid-e2-replacement-battery-37v-1800mah-li-ion","title":"KT.0010J.008 Acer Liquid E2 Replacement Battery 3.7V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAcer Liquid E2 \/ V370 — 3.7V Li-ion Replacement Battery (KT.0010J.008)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1800mAh Li-ion replacement battery for the Acer Liquid E2, Liquid E2 Duo, and V370 smartphones. It matches OEM part numbers KT.0010J.008 and JD-201212-JLQU-C11M-003. Swap it in when the original cell no longer holds a usable charge through a normal day.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLiquid E2, E2 Duo, and V370 compatibility:\u003c\/strong\u003e\n    All three models run the same 3.7V single-cell architecture with an identical connector pinout and BMS handshake protocol. One cell fits all three without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the V370 platform. The BMS accepted the new cell without error flags, and the protection circuit tripped correctly at the low-voltage cutoff threshold during deep-discharge simulation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge down to auto-shutoff, then charge uninterrupted to 100% before normal use. The Liquid E2 fuel gauge IC calibrates its coulomb counter against the first complete cycle — skipping this step causes the OS to read percentage against the old cell's discharge curve.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Liquid E2 shuts down suddenly at 20–30% after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Acer Liquid E2 uses a coulomb-counting fuel gauge IC that maps voltage to percentage using a stored discharge curve from the original cell. A new cell has a different internal resistance profile, so the gauge underestimates how close the cell is to its actual low-voltage cutoff. When the modem fires a high-current burst — during a call or data sync — the cell voltage drops sharply below the 3.0V hardware cutoff, and the phone shuts off instantly. The fix is one complete unconstrained discharge-charge cycle so the IC can rebuild its internal map against the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage, and if this battery sat unused for several months before installation, the cell voltage may have dropped below 2.5V — the threshold at which the BMS latches into lockout mode to prevent further discharge damage. The phone will show no response at all: no charge indicator, no boot attempt. Connect the phone to a low-current USB charger (a standard 5V 500mA port, not a fast charger) and leave it for 20–30 minutes without pressing the power button. Once the BMS detects cell voltage rising above approximately 2.8V, it exits lockout and normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404320407642,"sku":"BWCS-ACV370XL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404320440410,"sku":"BWCS-ACV370XL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404320473178,"sku":"BWCS-ACV370XL-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACV370XL-1.webp?v=1779369679","url":"https:\/\/batteryweb.com\/products\/acer-liquid-e2-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}