Battery empty Go 5100.
Recently the unit will only turn on for 20-60 seconds before it powers off, with the error message "battery empty".
This happens whilst the unit is plugged in to power.
I have tried charging the battery overnight, to no avail.
Any ideas why the battery won't charge and also why the unit won't run on cable power at all?
I tried replacing the cable, using a different mount, charging the battery - but always get the same message and the unit then powers off.