Samsung Galaxy Tab Active EB-BT365BBU Replacement Battery 3.8V 4050mAh

Samsung Galaxy Tab Active SM-T360 / SM-T365 — 3.8V Li-Polymer Replacement Battery (EB-BT365BBU)

This 3.8V, 4050mAh Li-Polymer battery replaces the EB-BT365BBU in the Samsung Galaxy Tab Active (SM-T360 and SM-T365). It fits the 8-inch rugged Android tablet used across field service, logistics, and enterprise environments. Direct swap for a degraded or failed original cell.

• SM-T360 and SM-T365 compatibility: Both models share the same 3.8V battery rail, connector pinout, and BMS handshake protocol. The EB-BT365BBU part number covers the full production run of the Galaxy Tab Active 8.0, including variants listed as EB-BT365BBC, EB-BT365BBE, and GH43-04317A.
• Bench tested on actual hardware: We ran this cell on an SM-T365 unit and confirmed the BMS accepted the charge cycle without fault flags, held voltage within spec under combined display and Wi-Fi load, and passed the protection circuit trip test at the low-voltage cutoff threshold.
• Fuel gauge recalibration after swap: After installing this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100% without interruption. The Galaxy Tab Active's fuel gauge IC calibrates against a stored cell profile — skipping this cycle causes the percentage readout to drift against the new cell's actual state of charge.

Galaxy Tab Active shutting down between 15% and 25% remaining

The SM-T360 and SM-T365 draw significant current when the display is at full brightness and Wi-Fi is active simultaneously. On a battery whose fuel gauge hasn't been recalibrated to the new cell, the reported state of charge drifts above the actual voltage. The tablet's protection circuit reads a real low-voltage condition before the displayed percentage catches up, and the device cuts out. After installing a new cell, run one full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% — this resets the stored capacity baseline and eliminates the premature cutoff.

Fast charging unavailable after battery replacement on the Galaxy Tab Active

Some SM-T365 units revert to standard charge rates immediately after a battery swap. The charge IC on the tablet negotiates the fast-charge handshake during the first accepted charge cycle on the new cell — it doesn't carry over from the previous battery. Plug into the original Samsung adaptive charger and allow the first full charge to complete without disconnecting. Fast charge availability typically restores from the second cycle onward once the handshake has been written to the new cell's profile.