hi guys i brought the new tom tom one edition from dixons for £144
my quesiton is this , im going up to old trafford on sunday and i dont have a car cig lighter(i knw dumb !) , how long does the battery last , and can i use the usb cable to charge the battery as i dont have home charger
also im planning on turning it off during my journey as there is a 1hour nonstop drive no point in turning it on, so when i turn the tomtom one on during the journey will it still carry on taking me to old trafford
also are there any ways i can cut dwn the battery use , would turning down the light be good?
please help guys thanks
(i knw there are alot of question sorry

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