About this replacement
Samsung Galaxy Tab Active SM-T360 / SM-T365 — 3.8V Li-Polymer Replacement Battery (EB-BT365BBU)
This 3.8V, 4700mAh lithium-polymer battery replaces the EB-BT365BBU and fits the Samsung Galaxy Tab Active SM-T360 and SM-T365 — an 8-inch rugged tablet built for field and enterprise use. It matches the original cell footprint at 104 x 80 x 4.60mm and connects via the same factory connector and BMS interface. Capacity is rated at 17.86Wh.
- SM-T360 and SM-T365 platform fit: Both variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers both. The fuel gauge IC communicates charge state through the same data line on either board revision.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the SM-T365 board. The BMS accepted charge negotiation without fault flags, and the protection circuit responded correctly to low-voltage cutoff at the expected threshold.
- Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff — do not force power-off — then charge uninterrupted to 100%. That single full cycle lets the fuel gauge IC recalibrate against the new cell's actual voltage curve and clears the inaccurate percentage display that appears after a swap.
Galaxy Tab Active shutting down at 15–25% remaining
This happens when the fuel gauge IC is still calibrated to the old cell's voltage curve. The new cell has a steeper voltage drop in the lower charge band than the worn cell the tablet previously learned from. When the display and WiFi radio draw current simultaneously, the combined load pulls the cell voltage below the BMS cutoff threshold before the percentage counter reaches zero. One full discharge-to-shutoff followed by an uninterrupted charge to 100% resets the calibration. After that cycle, shutdowns at 15–25% stop.
Fast charging not available after battery swap
Samsung's adaptive fast charge protocol requires the charge IC and fuel gauge to complete at least one full accepted charge cycle before the tablet re-enables higher charge rates. Immediately after a swap, the system defaults to standard 5V charging as a safety fallback. This is not a fault with the cell. Charge the tablet fully once from low battery using the original Samsung charger, and fast charge will resume on the next session.