Hey guys, Since the release of iOS 7 I read a lot of threads about battery life on iPhones.. Before updating my iPhone 5 to iOS 7, I had a usage of about 8-9 hours of usage (5 months old iPhone).... After updating to iOS 7 i only had maximum usage of 6 hours of usage... Mostly only 5 hours, and I am only using my iPhone 5 on wifi... So I was really surprised of the changes, because for a lot of users there was no difference. I sent my iPhone back to my Operator, which sent it for me to reparation and they directly switched my iPhone for a new one. However, this "new" iPhone 5 came with iOS 6. The usage is exactly the same as before, and now I am scared if I should update to iOS 7, if there will be some changes or not.. Did somebody experienced the same changes? Thank u very much for ur help!