Hardwiring a TomTom One XL

Got my first SatNav recently, which I am pleased with. I do a lot of
driving in areas I am not familiar with, so the speed check / speed
camera facilities are really welcomed.

I wish now to hardwire it into the dash of my van. I bought a cheap
cigarette lighter lead off ebay (so I dont have to destroy my original
TomTom one) which I intend to use to hardwire into the electrics of my
van. I already have a regulated 5V supply in the van, which I
currently use to power my hardwired MP3 player.

My question is, the 5V supply goes off when the ignition is turned
off. Is there anyway to set the tomtom up, so that it powers down when
the external power is removed. At the moment, the internal battery
tries to power the unit, when the external supply vanishes, but does
not have enough capacity to last the night, which will destroy the
internal batteries eventually.

Mark in Spain

Anti-Spam wrote:
Yes there should be. It's in preferences - Battery saving preferences.
Tap done on the first screen and the setting you want is next. NB it
won't turn itself on again with the power though