Hi, I updated my iPhone 5 to iOS 7.1b2 (yes, i have registered UDID ) My problem is that most people are saying that the battery is great. I disabled everything and my battery is still draining. It takes about 15 min. to go from 100 to 99% but after 99% it drops like crazy. 1% every minute. I get around 4 hours of use and i am on around 13%. Any help?