Your phone shouldn't do this, if the new 5.0.1 doesn't fix it, I would take it the apple store the battery might be defective
Good morning! I'm very anxious to help with this unusual concern. I'm sure this is frustrating to you, however did the most recent ISO 5 update fix this issue? If not, please advise so I and the community can better assist you.
iOS 5.0.1 does not resolve the problem!!!
My iphone 4s will charge all night and be at 97% while plugged in, this is very frustrating!!