Note that the battery replacement is very difficult or difficult: You have to open the Tom Tom, unscrew the motherboard, disconnect a small layer of cables, the battery connector and especially off the original battery, which is firmly bonded. Be careful not to establish false contacts and do not puncture the battery by removing it! (Risk of explosion). I managed by sliding a thin piece of plastic, flat and rigid in many places, and leaving it in place for some time on one side, then another, etc. Then I cleaned the site as much as could and pasted the new battery with two-sided tape.
