Starting yesterday I noticed that my battery was draining faster than usual, the phone having died after being used for half the day, when it typically makes it the full day. Nothing was being used more or less, and all of the application managers and battery life charts indicated that everything was running as normal. Then this morning after having the phone charged for the entire night, it tells me that on the remaining battery life the phone will only last about 7 minutes, and the percentage is dropping rapidly (about a percent every 30 seconds) Any idea what the problem is?