About this replacement
Samsung Galaxy Tab A 10.1 2016 — 3.8V Li-Polymer Replacement Battery (EB-BT585ABA)
This is a 3.8V, 7300mAh Li-Polymer battery for the Samsung Galaxy Tab A 10.1 2016. It fits SM-T580 and SM-T585 variants, covering both the WiFi-only and TD-LTE models. OEM part numbers EB-BT585ABA, GH43-04628A, and EB-BT585ABE all cross-reference this cell.
- SM-T580 and SM-T585 compatibility: Both models share the same battery bay dimensions, connector pinout, and charge IC handshake. The BMS in this cell communicates with the same fuel gauge logic across the WiFi and LTE board variants — no firmware conflict.
- Bench tested on actual hardware: We ran this cell on an SM-T580 unit. The charge IC accepted the new cell on first connection, BMS protection tripped correctly at low-voltage threshold, and the tablet completed a full charge cycle without error flags.
- Fuel gauge recalibration after installation: After fitting, run the tablet down to automatic shutoff — do not force-power-off — then charge uninterrupted to 100%. This gives the fuel gauge IC a full reference cycle against the new cell's actual capacity curve and clears the inaccurate percentage display that appears after a swap.
Galaxy Tab A 10.1 shutting down at 15–25% remaining after battery swap
This happens because the fuel gauge IC is still calibrated to the old cell's voltage curve. The new cell hits a voltage cliff under combined display and WiFi load before the percentage readout reaches zero. The tablet interprets this as a low-voltage emergency and cuts off. One full discharge-to-shutoff followed by an uninterrupted charge to 100% resets the gauge reference. After that cycle, the reported percentage tracks correctly against actual cell voltage.
Fast charging not available after fitting the replacement cell
The Samsung adaptive fast charge protocol requires at least one completed negotiation cycle before the charge IC flags the new cell as trusted. On first connection, the controller defaults to standard 5V charging as a precaution. Plug in the original Samsung wall adapter — not a third-party charger — and allow the first full charge cycle to complete without interruption. Fast charge becomes available from the second cycle onward once the adapter and cell have completed handshake verification.