Well I was off today so I experimented with the phone. The phone charged up all the way without a problem. The problem occurs after the phone is fully charged for me at least. After the phone was fully charged I kept it plugged in and after about an hour the phone locked up. I did a soft reset and the phone which was fully charged dropped down to about 75% batter life. I will try this again but the thing that sucks is that it doesnt happen all the time so it might be hard to duplicate the problem.