...I did a factory restore and set the phone up as new. When I received my phone on Friday, I set it up from my, recently cleaned up, iPhone 4 (5.1.1) back up. Battery was terrible and I was ready to through the iP5 against the wall. Was only getting about 2 hours of usage before it died even after multiple charging cycles (with everything possible turned off). I could watch the screen doing nothing and the battery indicator would tick down every 30 seconds. I could deal with the chips in the black bezel, but a crappy battery life was a deal breaker. I decided to restore the phone and set it up as new, what the hell I have nothing else to lose besides it being a PITA to redo all my settings, etc... Well.... now after the restore as new, battery is holding strong. It's been off the charger for 2 hours now and I'm at 99% on LTE (with everything on, BT, wifi). If your battery is sucking, restore it as new phone and hopefully that'll work for you.