{"product_id":"samsung-sm-t830-replacement-battery-38v-7300mah-li-polymer","title":"Samsung Galaxy Tab S4 10.5 Replacement Battery EB-BT835ABU","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy Tab S4 10.5 — 3.8V Li-Polymer Replacement Battery (EB-BT835ABU)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 7300mAh Li-Polymer cell replaces the original EB-BT835ABU battery in the Samsung Galaxy Tab S4 10.5. It fits the SM-T830 and SM-T835 variants, including the 2018 TD-LTE model. Swap it when your Tab S4 drains unusually fast, fails to charge past a certain percentage, or shuts down unexpectedly under load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSM-T830 and SM-T835 compatibility:\u003c\/strong\u003e\n    Both Wi-Fi and LTE variants of the Tab S4 10.5 use the same battery bay dimensions, connector pinout, and BMS handshake protocol — the EB-BT835ABU fits both 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 SM-T830 hardware. The BMS accepted the cell on first contact, reported capacity correctly after one recalibration cycle, and held voltage within the expected 3.6–4.35V window throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After installation, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC against the new cell's actual capacity curve and clears the inaccurate percentage readings that typically appear right after a battery swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTab S4 shutting down at 15–25% remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the display backlight and active Wi-Fi together draw enough current to cause a sharp voltage sag in a degraded or freshly installed cell. The BMS reads the voltage drop as a low-battery cutoff event and trips before the fuel gauge percentage catches up. On a new cell, this resolves after one full recalibration cycle — discharge to automatic shutoff, then charge to 100% uninterrupted. If shutdowns persist past two full cycles, check that the battery connector is fully seated and that no pins are bent.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available on the Tab S4 after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Tab S4 uses Samsung's Adaptive Fast Charging protocol, which requires the charge IC to complete at least one accepted charge cycle before negotiating higher wattage. After a battery swap, the tablet often defaults to standard 5V charging on the first cycle. Plug in with the original Samsung charger and cable — third-party cables frequently lack the wiring needed for the handshake. Once one full charge cycle completes, the fast charge indicator should reappear in the notification shade on the next plug-in.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425842331738,"sku":"BWCS-SMT830SL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425842364506,"sku":"BWCS-SMT830SL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425842397274,"sku":"BWCS-SMT830SL-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMT830SL-1.webp?v=1779929976","url":"https:\/\/batteryweb.com\/products\/samsung-sm-t830-replacement-battery-38v-7300mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}