Hi
I have recently purchased a TomTom XXL Classic and after turning it on to check if it was ok, I then charged it up overnight, which was around 10 hours. When I disconnected the device in the morning, I tapped the bottom right of the screen to reveal 'battery icon' at the top right and it was only showing about 3/4 full as indicated by the 'green progress indicator'.
I then reconnected the mains ...