Mitac Mio Moov 300 Compatible Battery 3.7V 750mAh

Mitac Mio Moov 300 Series — 3.7V Li-ion Replacement Battery (0781417XC)

This 3.7V, 750mAh Li-ion cell replaces part number 0781417XC in the Mitac Mio Moov 300, 301, 310, and 330 portable GPS navigators. It powers the display, GPS receiver, and route processor. Swap it when the original cell no longer holds enough charge to complete a navigation session.

• Moov 300 series compatibility: The 300, 301, 310, and 330 all share the same battery bay dimensions, connector pin-out, and 3.7V charging circuit — one cell fits the group without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Moov 300 platform. The BMS accepted the cell without fault codes, and the charge controller reached full voltage without triggering a protection cutoff.
• Cold-start satellite acquisition: After fitting this cell, power the unit on outdoors and let it run until it acquires a satellite fix before driving. A full power interruption forces a GPS cold start — first fix after a swap can take 5–10 minutes versus under a minute for a warm start on a known position.

GPS accuracy reduced as battery level drops on the Moov 300

The Moov 300's GPS receiver draws consistent current to maintain satellite lock, but as cell voltage sags toward the lower cutoff threshold, the unit can reduce receiver sensitivity to protect remaining capacity. This shows up as position drift or a weaker satellite signal bar reading even in open sky. It is not a software bug — it is a hardware-level power management response. Keeping the cell above 3.5V under load prevents the sensitivity reduction from triggering.

Moov 300 shuts off with no low-battery warning

After a full battery swap, the fuel gauge IC has no calibration data for the new cell's actual discharge curve. It relies on a voltage threshold to trigger the on-screen warning, but a fresh cell can drop voltage quickly in the final 10–15% of capacity, causing the unit to hit the hard cutoff before the warning appears. Run two or three full charge-to-discharge cycles to let the device recalibrate its shutdown threshold. After calibration, the warning should appear reliably above 3.6V.