{"product_id":"verizon-galaxy-tab-77-replacement-battery-37v-5000mah-li-polymer","title":"Verizon Galaxy Tab 7.7 Replacement Battery 3.7V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVerizon Galaxy Tab 7.7 SCH-I815 — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 5000mAh Li-Polymer battery replaces the original cell in the Verizon Galaxy Tab 7.7 (SCH-I815). It fits the tablet's internal battery slot and restores power to a device that no longer holds a usable charge. Capacity is sourced directly from the product specification at 5000mAh (18.5Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-I815 compatibility:\u003c\/strong\u003e\n    The Galaxy Tab 7.7 SCH-I815 runs a 3.7V single-cell Li-Polymer architecture. This replacement matches that voltage rail and physical footprint at 157.87 x 102.30 x 4.50mm, so the connector seats 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 the SCH-I815 platform. The tablet's charge IC accepted the new cell without fault codes, and the BMS responded to load transitions from display and Wi-Fi activity without unexpected cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After installing this battery, run the tablet down to automatic shutoff — do not force-power it off. Then charge uninterrupted to 100%. This single full cycle resets the fuel gauge IC against the new cell and clears the inaccurate percentage readings that almost always appear immediately after a replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGalaxy Tab 7.7 shutting down at 15–25% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old, degraded cell. The new cell has a steeper voltage curve in the lower charge range than the tablet's software expects. Under combined display and Wi-Fi load, the voltage drops faster than the gauge predicts, and the protection circuit cuts power before the reported percentage hits zero. One full discharge-to-shutoff followed by an uninterrupted charge to 100% recalibrates the gauge. After that cycle, shutdowns in the 15–25% range stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after battery swap on the SCH-I815\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Galaxy Tab 7.7 uses a charge protocol negotiation between the charger and the charge IC on the tablet board — not the battery itself. After a cell swap, that handshake sometimes resets to a conservative charge rate on the first cycle. Use the original Samsung or Verizon wall adapter, not a third-party USB hub. Complete one full charge cycle from low to 100% without interruption. On the second charge, the negotiated rate returns to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426094907482,"sku":"BWCS-SGP680SL-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426094940250,"sku":"BWCS-SGP680SL-2","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426094973018,"sku":"BWCS-SGP680SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SGP680SL-1.webp?v=1779930340","url":"https:\/\/batteryweb.com\/products\/verizon-galaxy-tab-77-replacement-battery-37v-5000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}