Garmin Zumo 400 Replacement Battery 3.7V 2600mAh 010-10863-00

Garmin Zumo 400 / 500 Series — 3.7V Li-ion Replacement Battery (010-10863-00)

This 3.7V 2600mAh Li-ion cell replaces the original battery in the Garmin Zumo 400, 450, 500, and 500 Deluxe motorcycle GPS navigators. It matches OEM part numbers 010-10863-00 and 011-01451-00. Fit this when the original cell no longer holds charge through a full ride.

• Zumo 400 / 450 / 500 series fit: These models share an identical battery bay, connector pinout, and BMS handshake protocol across the range. One cell covers all four variants without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Zumo 500 platform. The BMS accepted the cell without fault codes and voltage held within the expected 3.7V nominal window under continuous navigation load.
• Cold-start satellite acquisition after fitting: After any full power interruption, the Zumo performs a GPS cold start. Take the unit outdoors and power it on before your first ride — first satellite fix takes 5 to 10 minutes. Subsequent warm starts drop to under a minute once almanac data is cached.

Saved routes and POIs disappearing after a battery swap

The Zumo 400 and 500 series store some active navigation state and recently used data in battery-backed RAM. When you remove the old cell completely, that volatile memory loses power and clears. Saved routes stored to internal flash are usually retained, but unsaved active routes or recent destinations in RAM will not survive the swap. Before pulling the old battery, sync the device to Garmin Express or manually save any active route to internal storage.

Zumo shutting off without a low-battery warning

After fitting a new cell, the on-screen battery indicator is uncalibrated. The device's fuel-gauge reading still references the old cell's discharge curve, so the visual indicator can show two or three bars right up until the BMS hits its low-voltage cutoff threshold and shuts the unit down. This is not a fault with the replacement cell — it corrects itself after two to three full charge and discharge cycles. Run the battery down to auto-off, then charge it fully to 4.2V twice, and the indicator will track accurately.