Hey, I just bought a White iPhone 5 from AT&T yesterday and immediately installed iOS 7. I've only been on safari and iTunes radio mostly and I've noticed my battery draining a lot faster then my previous iPhone. I know it definitely has to do with iOS 7 and I haven't used iOS 6 on the iPhone 5 so I have nothing to compare too. I attached my usage stats. Is this normal and if I switch back to iOS 6, from experience how long does the battery last?