Mio Moov M410 Replacement Battery 3.7V 1050mAh

Mio Moov M410 — 3.7V Li-ion Replacement Battery

This 3.7V, 1050mAh Li-ion cell replaces the internal battery in the Mio Moov M410 portable GPS navigator. It fits the M410 directly and restores power to units that can no longer hold a usable charge. Voltage and capacity match the original specification: 3.7V, 1050mAh (3.89Wh).

• Moov M410 fitment: The M410 uses a compact slim-profile cell — 50 x 35 x 5mm — with a low-current draw profile suited to GPS receiver and display operation. This cell matches that footprint and the voltage rail the onboard navigation processor expects.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a GPS-class load. The BMS responded correctly at both high-state and low-state thresholds, with no spurious cutoff during simulated navigation draw.
• First fix after battery swap: After fitting this cell, power the unit on outdoors and let it acquire a satellite fix before driving. The M410 performs a cold start after any full power interruption — first fix can take 5–10 minutes. Subsequent warm starts are under a minute.

GPS accuracy reduced at the bottom of the charge curve

Some GPS navigators, including Mio units, reduce receiver sensitivity when voltage drops toward the low cutoff threshold. The M410's GPS chipset pulls less current in this state to protect the cell, but signal acquisition suffers as a result. You may notice position drift or slower route recalculation when the battery indicator shows one bar. Charge the unit before longer trips rather than relying on the remaining bar — the display indicator is not a precise voltage readout.

M410 shutting off without low-battery warning

This happens when the battery's actual discharge curve no longer matches the thresholds the device was calibrated against — common in aged cells. After fitting a new cell, the fuel gauge logic needs a full charge-to-discharge cycle to recalibrate. Charge the unit to 100% uninterrupted, then use it until it shuts off naturally. After that first full cycle, the low-battery warning should reappear at the correct point before shutdown.