I just got my droid 2 a month ago, and haven't had any problems with the battery up until yesterday. I keep my phone on when I charge it through an outlet, and have been using the original charger. I plugged it in at 50%, and it charged up to 60%. I woke up this morning and it was at 50% again. I've had it on the charger with the same outlet I've been using since day 1, and it went back to 60% and back down to 50%. I haven't been using it excessively, and I've already taken the battery out of the back and turned it off and on. What is wrong??