{"product_id":"gigabyte-gsmart-gs202-replacement-battery-37v-1300mah-li-ion","title":"Gigabyte Gsmart GS202 Replacement Battery BL-148 3.7V 1300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGigabyte Gsmart GS202 — 3.7V Li-ion Replacement Battery (BL-148)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1300mAh Li-ion replacement battery for the Gigabyte Gsmart GS202 Android smartphone. It carries OEM part number BL-148 and fits the GS202 directly. Capacity is 4.81Wh — matching the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGsmart GS202 fit:\u003c\/strong\u003e\n    The GS202 uses a fixed voltage rail at 3.7V nominal with a specific connector and contact layout. This cell matches that configuration — same footprint at 54.15 x 48.18 x 5.20mm, same contact orientation, and the BMS handshake the GS202 charge IC expects.\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 load on the GS202 platform. The BMS accepted the charge profile without cutoff events, held stable voltage through screen-on and modem-active loads, and reported state-of-charge without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    On first use, disable any fast-charge mode and run one full discharge-to-charge cycle at standard rate. This lets the GS202 fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging pushes into an uncalibrated state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GS202 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe GS202 uses a fuel gauge IC that builds its percentage model from a learned discharge curve stored against the original cell. When you swap in a new cell, that stored curve no longer matches actual cell chemistry. The IC keeps applying the old model, so displayed percentage drifts — often reading full charge while actual capacity is lower. One complete slow discharge-charge cycle forces the IC to relearn the curve against the new cell and corrects the displayed percentage.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the GS202 after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't yet recalibrated and the cell hits a voltage cliff — a rapid voltage drop under combined modem and display load that the gauge didn't predict. The phone's protection circuit cuts power before the displayed percentage reaches zero. It is not a defective cell. Charge to 100%, run one full discharge without interruption, then charge again fully — after that cycle the gauge tracks voltage sag accurately and unexpected shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404299698266,"sku":"BWCS-GSG202SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404299731034,"sku":"BWCS-GSG202SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404299763802,"sku":"BWCS-GSG202SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GSG202SL-1.webp?v=1779369642","url":"https:\/\/batteryweb.com\/products\/gigabyte-gsmart-gs202-replacement-battery-37v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}