{"product_id":"gsmart-g1345-replacement-battery-37v-1500mah-li-ion","title":"GSmart G1345 Replacement Battery 3.7V 1500mAh Li-ion GLS-H03","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGSmart G1345 — 3.7V Li-ion Replacement Battery (GLS-H03)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1500mAh Li-ion cell built to replace the original battery in the GSmart G1345 smartphone. It fits the G1345 directly, using OEM part references GLS-H03 and 29S00-60AR0-B30S. Voltage and capacity match the stock specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG1345 platform fit:\u003c\/strong\u003e\n    The G1345 uses a fixed 3.7V single-cell architecture with a dedicated connector and BMS handshake tied to that voltage rail. This cell meets that spec — the charge IC will recognise and negotiate correctly 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 full charge and discharge on a G1345 unit. The BMS accepted the new cell without fault flags, and the charge IC held steady at the expected cutoff without triggering overcurrent or overvoltage protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. The fuel gauge IC on the G1345 is calibrated against the old cell's discharge curve — one full cycle lets it reset the coulomb counter against the new cell before high-current charging begins.\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 G1345 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity fault. When the modem fires during a call or the display peaks, current draw spikes sharply. A new cell with an uncalibrated fuel gauge IC can read 25% state-of-charge while the actual terminal voltage has already dropped below the 3.2V shutdown threshold under load. The phone cuts out to protect the cell. One full discharge-charge cycle — no fast charging — forces the fuel gauge IC to map the new cell's actual voltage curve, and the premature shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eG1345 reporting erratic or jumping battery percentage after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe G1345 fuel gauge IC stores a learned discharge curve from the previous cell. Drop in a new cell and that stored curve no longer matches the actual chemistry — the coulomb counter overcorrects on the way down, producing percentage jumps of 5–15% in either direction. This is not a fault with the replacement cell. Run the phone from 100% down to auto-shutdown, then charge uninterrupted to 100%. After that single calibration cycle, the IC resets its reference points against the new cell's actual impedance and the percentage readings stabilise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404312936538,"sku":"BWCS-GSG145SL-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404312969306,"sku":"BWCS-GSG145SL-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404313002074,"sku":"BWCS-GSG145SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GSG145SL-1.webp?v=1779369680","url":"https:\/\/batteryweb.com\/products\/gsmart-g1345-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}