I'm on an iPhone 5 running iOS 6.0.2. Until today i was having bad battry life (ranging from 5-6 hours) on casual usage. (Some gaming (15-30 minutes), the rest on facebook, twitter and safari) but today, doing the exact same stuff i usually do i got 3 hours usage only. Yes, I already restored my fone, twice! Yes, I restored it to factory settings. I don't have alot of things on push notifications (fb only) and i really try to be as battery friendly as possible. What else should i do? Should i try to downgrade my phone to 6.0.1?