DT Research DT361AM Replacement Battery 7.6V 3100mAh

DT Research DT361AM Series — 7.6V Li-ion Replacement Battery (ACC-006-362G)

This is a 7.6V, 3100mAh Li-ion battery for the DT Research DT361AM, DT361DM, and DT361AD rugged tablets. It matches the OEM part number ACC-006-362G and slots into the original battery bay without modification. Capacity is 23.56Wh — identical to the factory specification.

• DT361AM, DT361DM, and DT361AD compatibility: All three variants share the same 7.6V battery rail, connector pinout, and BMS handshake protocol — that is why one cell covers the full DT361 lineup. Swapping between these models does not change the battery requirement.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the DT361 platform. The BMS negotiated correctly, protection thresholds tripped at expected voltages, and the charge IC accepted the cell without fault codes.
• Fuel gauge recalibration after install: After fitting this battery, run the tablet down to automatic shutoff, then charge it uninterrupted to 100% without using the device. This resets the fuel gauge IC against the new cell's actual capacity curve and clears the inaccurate percentage readings that appear immediately after a swap.

DT361AM shutting down at 15–25% battery remaining

This happens when the fuel gauge IC is still calibrated to the worn-out original cell. The old cell had a steep voltage drop at low charge — the tablet learned to cut off early to protect it. When a fresh cell is installed, that same cutoff point fires well above zero capacity. Run one complete discharge cycle to automatic shutoff, then a full uninterrupted charge. After that single cycle, the gauge recalibrates to the new cell's voltage curve and the early shutoff stops.

Fast charging not available after battery swap on the DT361

Some DT361 units require one completed charge cycle before the charge controller unlocks higher-rate charging on a new cell. Until that first cycle finishes, the USB-PD negotiation defaults to standard 5V input as a safety measure. Charge the tablet fully from near-empty using the original DT Research charger — do not interrupt the session. After that cycle completes, fast charge availability returns on the next charge session.