{"product_id":"samsung-sm-t870-replacement-battery-386v-7760mah-li-polymer","title":"Samsung Galaxy Tab S6 EB-BT875ABY Compatible Battery 3.86V 7760mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy Tab S7 11.0 \/ SM-T870 — 3.86V Li-Polymer Replacement Battery (EB-BT875ABY)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.86V, 7760mAh Li-Polymer battery replaces the original cell in the Samsung Galaxy Tab S7 11.0 and its regional variants — SM-T870, SM-T875N, and SM-T878U. It fits where the OEM part EB-BT875ABY or GH43-05028A was originally installed. Use it when the tablet no longer holds a charge, shuts off unexpectedly, or won't power on past the boot screen.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTab S7 variant coverage:\u003c\/strong\u003e\n    SM-T870, SM-T875N, SM-T878U, and the Galaxy Tab S7 11.0 all share the same 7760mAh cell format, connector pinout, and BMS handshake protocol — that's why one part number covers the full lineup.\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 SM-T870 platform. The BMS negotiated correctly with Samsung's charge IC, voltage stayed within spec at load, and no thermal flags triggered during a full charge cycle.\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, then charge it uninterrupted to 100% without using the device. This forces the fuel gauge IC to recalibrate against the new cell's actual capacity curve and clears the inaccurate percentage readings that commonly appear after a battery replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTab S7 shutting down at 15–25% remaining battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Galaxy Tab S7's display draws significant power at high brightness, and when Wi-Fi is active and syncing simultaneously, the combined load creates a sharp voltage dip. If the fuel gauge IC hasn't mapped the new cell correctly, it misreads that voltage cliff as near-empty and triggers a shutdown — even when real capacity remains. The BMS protects the cell by cutting output the moment terminal voltage drops below its threshold under that combined draw. Running one full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% resets the gauge and pushes the shutdown point back down where it belongs.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging unavailable after battery replacement on SM-T870\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUSB-PD and Samsung's Adaptive Fast Charge protocol require the charge controller to complete at least one full accepted charge cycle before the device re-enables high-wattage charging. After a swap, the tablet often defaults to standard 5V charging for the first cycle as a safety measure — this isn't a fault with the battery or the charger. Plug in the original Samsung charger and let it complete one full charge from low to 100% without interruption. Fast charge should re-enable automatically on the next connection once the protocol handshake clears.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425824243802,"sku":"BWCS-SMT870SL-1","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425824276570,"sku":"BWCS-SMT870SL-2","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425824309338,"sku":"BWCS-SMT870SL-3","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMT870SL-1.webp?v=1779929853","url":"https:\/\/batteryweb.com\/products\/samsung-sm-t870-replacement-battery-386v-7760mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}