{"product_id":"att-galaxy-exhilarate-replacement-battery-37v-1750mah-li-ion","title":"EB-L1G5HBA Samsung Galaxy Exhilarate Replacement Battery 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAT\u0026amp;T Galaxy Exhilarate SGH-I577 — 3.7V Li-ion Replacement Battery (EB-L1G5HBA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1750mAh Li-ion replacement battery for the Samsung Galaxy Exhilarate and Galaxy Exhilarate 4G on AT\u0026amp;T (model SGH-I577). It matches OEM part numbers EB-L1G5HBA, EB-L1G5HBABXAR, and EB-L1G5HVA. It slots into the original battery bay with no modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGalaxy Exhilarate and Exhilarate 4G compatibility:\u003c\/strong\u003e\n    Both variants use the same physical bay, connector pin layout, and BMS handshake protocol — one battery cell covers both. The SGH-I577 board reads charge state through the same three-contact thermistor line on either device.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in an SGH-I577 unit and confirmed the BMS accepted the cell without fault flags. Charge acceptance was normal across the full 3.7V nominal range, and the protection circuit tripped correctly at low-voltage threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one full discharge-charge cycle. The fuel gauge IC on the Exhilarate calibrates its coulomb counter against the new cell's discharge curve — skipping this step causes the OS to report inaccurate percentages until it completes a full cycle naturally.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Galaxy Exhilarate reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe SGH-I577 uses a fuel gauge IC that tracks charge state by counting coulombs in and out of the cell. When the original cell ages, the IC recalibrates its full-charge reference to the degraded capacity. A new 1750mAh cell has a different discharge curve, so the stored reference is immediately out of sync. The phone reads remaining charge against the old curve and displays incorrect percentages — often showing 100% that drops sharply to 60% within minutes. One complete discharge to shutdown, then a full charge to 4.2V, resets the counter reference to match the new cell.\u003c\/p\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 modem radio or display spikes current demand and the cell voltage drops below the BMS cutoff threshold — even though the OS gauge still shows charge remaining. The fuel gauge IC has not yet mapped the new cell's voltage-sag profile under load. Until it does, the BMS trips the protection circuit at what appears to be a partially charged state. Run two full discharge-charge cycles without interruption and the gauge IC builds an accurate low-voltage cliff map. After that, shutdown should not occur above 3.4V under normal load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405037699162,"sku":"BWCS-SMT769XL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405037731930,"sku":"BWCS-SMT769XL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405037764698,"sku":"BWCS-SMT769XL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMT769XL-1.webp?v=1779369859","url":"https:\/\/batteryweb.com\/products\/att-galaxy-exhilarate-replacement-battery-37v-1750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}