About this replacement
Samsung Galaxy Tab E 7.0 2016 4G LTE — 3.8V Li-Polymer Replacement Battery (EB-BT280ABA)
This 3.8V, 4000mAh lithium-polymer battery replaces the original cell in the Samsung Galaxy Tab E 7.0 2016 4G LTE. It fits SM-T280, SM-T285, and SM-T285M tablets. OEM part numbers EB-BT280ABA, EB-BT280ABE, and GH43-04588A all cross to this same cell.
- SM-T280 and SM-T285 compatibility: Both variants run the same 3.8V power rail and use the same flex connector and BMS handshake. One cell covers the Wi-Fi-only SM-T280 and the LTE SM-T285 — the charge IC makes no distinction between the two.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on an SM-T285 unit. The BMS accepted charge from the first connection, reported state-of-charge to the OS without error, and held voltage within spec across the discharge curve.
- Fuel gauge recalibration after swap: After installing this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100% without using the device. This one full cycle resets the fuel gauge IC against the new cell and clears the inaccurate percentage readings that almost always appear after a swap.
Tablet shutting down at 15–25% after battery replacement
The fuel gauge IC in the SM-T280 and SM-T285 stores a learned voltage curve from the old cell. When a new cell is installed, that stored curve no longer matches the real voltage-to-capacity relationship of the replacement. The tablet interprets a normal mid-range voltage dip — caused by the display backlight and LTE radio drawing current simultaneously — as a critically low state, and shuts down to protect the hardware. One full discharge-to-shutoff followed by an uninterrupted charge to 100% resets that learned curve against the new cell. After that cycle, shutdowns at 15–25% stop.
Fast charging unavailable on the Tab E 7.0 after the battery swap
Samsung's Adaptive Fast Charging requires the charge IC to complete at least one full accepted charge cycle before it negotiates higher current from a compatible charger. On a fresh cell install, the IC starts in a conservative mode and steps up only after it has profiled the new cell's internal resistance. Use a genuine Samsung AFC charger for the first charge and let it complete fully without interruption. After that initial cycle, the fast charge handshake re-enables at the correct voltage step.