{"product_id":"t-mobile-vibrant-replacement-battery-37v-1250mah-li-ion","title":"EB575152VU T-Mobile Vibrant Compatible Battery 3.7V 1250mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eT-Mobile Vibrant \/ Galaxy S 4G — 3.7V Li-ion Replacement Battery (EB575152VU)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1250mAh Li-ion battery for the T-Mobile Samsung Vibrant, SGH-T959W, Galaxy S 4G, and Vibrant 4G. It replaces OEM part numbers EB575152VU, EB575152VA, and EB575152LA. If your original cell no longer holds a charge or the phone won't power on, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVibrant and Galaxy S 4G platform fit:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers all variants on this platform 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 a Vibrant unit. The BMS communicated correctly with the phone's fuel gauge IC, and charge termination triggered at the expected 4.2V ceiling with no false cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, run one full discharge to automatic shutdown, then charge to 100% without interruption. The Vibrant's fuel gauge IC needs this cycle to map the new cell's discharge curve — skipping it causes the percentage counter to read inaccurately from the first day.\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 Vibrant after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Vibrant's PMIC uses voltage thresholds from the previous cell's discharge curve to decide when to shut down. A new cell has a steeper voltage drop near depletion than an aged cell, so the phone hits its low-voltage cutoff while the display still shows 20–30% remaining. This is a fuel gauge calibration mismatch, not a defective battery. Run one complete discharge-to-shutdown, then a full uninterrupted charge. After that cycle, the coulomb counter recalibrates and the reported percentage lines up with actual remaining capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone warm near the battery compartment during the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new high-impedance cell draws charge current against elevated internal resistance, which generates more heat than a broken-in cell. On the Vibrant, the charge IC doesn't throttle current on first insertion — it pushes the full charge profile immediately. This is normal for the first one or two cycles and settles as internal resistance drops. If the back cover stays hot after two full charge cycles, check that the cell is seated flat with no gap along the connector edge, as poor contact increases resistance further.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405118341210,"sku":"BWCS-SMG900SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405118373978,"sku":"BWCS-SMG900SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405118406746,"sku":"BWCS-SMG900SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMG900SL-1.webp?v=1779370243","url":"https:\/\/batteryweb.com\/products\/t-mobile-vibrant-replacement-battery-37v-1250mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}