Good morning everbody! I am an owner of an iphone 5 and until now i didn't reall need a newer iphone then that one. I had some battery problems with my phone these last weeks and i send it in to apple and got a new refurbished iphone 5 with ios 7.1.2 back! I checked it on ibackbooot (or how the programm is called) how old my battery was and how it was keeping on, and the first day I used my phone, it lasted me for ages! I was down at 1% with 11hours on usage! I was feeling so happy, because this remembered me back in the days with ios 6! The next day, i seriously getting crappy battery life. 6h30... Like ******** as never before! Can svy pls explain me what happened??? And why is it only possible to get that low battery usage level?! I only use my phone for some calls, text messages whatsappinga and facebook, like the same as before!