Mitac Mio P360 GPS Replacement Battery 3.7V 1350mAh

Mitac Mio P360 / P560 Series — 3.7V Li-ion Replacement Battery (E3MT07135211)

This 3.7V, 1350mAh Li-ion cell replaces the original battery in the Mitac Mio P360, P560, P560t, and P565 portable GPS navigators. It matches the OEM part numbers E3MT07135211 and 02739004E and fits the 50 × 35 × 7mm battery bay directly. Capacity figure is taken from the product specification — 5Wh total energy.

• Mio P360, P560, P560t, and P565 compatibility: These four models share the same battery bay dimensions, 3.7V voltage rail, and connector pinout. The BMS in each unit communicates the same charge-termination signal, so a single cell covers all four without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the P360 platform. The BMS accepted the full charge curve without tripping and held the low-voltage cutoff at the correct threshold — no false shutdowns during the discharge test.
• First-fix cold start after installation: After fitting this cell, power the GPS fully on outdoors before driving. A full power interruption clears the hot-start almanac data, so the unit performs a cold satellite acquisition that can take 5–10 minutes for the first fix. Subsequent locks after that session are fast.

GPS accuracy reduced at low battery on the Mio P360

When the cell voltage drops below roughly 3.5V, the Mio P360's receiver reduces its sensitivity to conserve power. This cuts the number of satellites tracked and degrades position accuracy — sometimes by 10–20 metres. The fix is not a firmware change. Fitting a cell with a full charge restores the receiver to full sensitivity and normal accuracy immediately.

Device shuts off without any low-battery warning on screen

A worn original cell loses capacity unevenly — the voltage can sit in the "adequate" range on the indicator, then collapse quickly once any load is applied. The navigator's shutoff threshold is triggered before the visual warning has time to display. This happens because the indicator reads resting voltage, not loaded voltage. After fitting a fresh cell, charge it to 100% before the first navigation session to re-establish an accurate baseline for the indicator.