I left my old cell phone in the truck one very cold night, and after that the battery would drain in about six hours. Instead of getting a new battery, I started looked closer at the new cell phones since it was about time for my wife to get a new one also (hers is so old it doesn't have a qwerty pad). We ended up with two HTC Evo Shifts, which have been out since the beginning of January. We love these phones so far! Having full access to the internet anywhere at any time is fabulous!