yeah send it back to tomtom and let them charge you more than it worth to fix... nice idea
its either the charger or probably the socket on the tomtom.
Test the charger on another tomtom or even better test another charger on your tomtom incase your adaptor is faulty.
Wiggle the adaptor in the tomtom see if the light comes on.
Nothing to do with the battery.
paul
July 2009