You're not alone .... Mine is on 86% now, that's in 45 minutes I've read Facebook, couple of emails and read 4 free online papers . Oh and updated 2 apps .. My colleague ( with a 5s) reckons it's because I have too many pushes for too much stuff, but I never had it this bad ... It's gone to 85% typing this ... If I travel by train to London , 40 mins, will facebook what's app etc, phone will be on 60%, 2 hours up there couple of calls web search etc And coming back on the train, it's down to 20% Did this last week, but if I kill all apps, turn off blue tooth and use my running app ( run meter) I can run a 2.15 half marathon and it eats only 30% .... And this prog is emailing me and posting to Facebook my location all the time Something on these phones is eating power, what we need ( is it out there ? ) is an app that reports what app is eating what power FYI now 84%