Ok iam sure there is another thread but iam in a hurry to post this as iam at work...I went out today and i was in a area that dont go to alot(off road driving) and i was on roam but the no service i went out with a full battery and about 5hrs later with no use my battery was dead i did have the GPS on but i only put it on for today. I know i read on one of the other post that the GPS could drain the battery..ANYONE????