{"product_id":"mtc-android-replacement-battery-37v-700mah-li-ion","title":"MTC Android Evo Replacement Battery 3.7V 700mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMTC Android \/ Evo — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 700mAh (2.59Wh) Li-ion replacement cell for MTC Android and Evo smartphones. It fits devices that accept a 54.05 x 34.10 x 5.40mm cell with a standard Li-ion charge profile. Swap it in when the original cell no longer holds enough charge to get through normal daily use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAndroid and Evo compatibility:\u003c\/strong\u003e\n    Both models share the same cell footprint, voltage rail, and connector pinout — one replacement cell covers either device without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on compatible hardware. The BMS accepted the standard Li-ion charge profile, reached full charge without tripping protection, and held voltage within spec across the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one full discharge-to-charge cycle. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging begins on an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell hits a voltage cliff under modem or screen load at a different state-of-charge than the IC expects. The phone interprets that voltage drop as a fault and shuts down before the percentage reaches zero. Run one full discharge cycle without interruption — let the phone drain until it shuts itself off, then charge uninterrupted to 100% — and the IC will recalibrate to the new curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone reporting wrong battery percentage after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a learned discharge profile for the original cell. After a cell swap, the IC reads voltage against the old profile and reports an inaccurate state of charge — often jumping erratically or showing 100% until a sudden drop. One complete uninterrupted discharge-to-charge cycle resets the coulomb counter against the new cell. After that cycle, percentage readings stabilise. If the phone has a dedicated battery stats reset option in developer settings, run that before the calibration cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405124173914,"sku":"BWCS-HUM750SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405124206682,"sku":"BWCS-HUM750SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405124239450,"sku":"BWCS-HUM750SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HUM750SL-1.webp?v=1779369992","url":"https:\/\/batteryweb.com\/products\/mtc-android-replacement-battery-37v-700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}