The battery graph on my Trek is wrong. It is showing 1 minute time remaining. How do I fix it?

If the battery graph is wrong, the BatteryPlus35 has gone out of sync.

Reset the BatteryPlus35 by following the below instructions:

1. Turn off the AC Mains (240V).
2. Disconnect the solar+, AUX+ and battery+ wires.
3. Wait 2 minutes.
4. Reconnect the solar+, AUX+ and battery+ wires.
5. Turn on the AC Mains (240V).