IPhone 5 what happened to the battery!

Took my iPhone to the apple store as I was having an issue with the mic it was intermittently not picking up so they said the only thing they could do for now is put iOS 7 on my phone I have been holding back for weeks I really don't like the look of it but thought if it solves the issue then I will have to get over it, I use my iPhone as my satnav as well and when I went to the store I had around 85% plenty to do what I needed to do and get me home again with around 50% left is the usual for the length of drive however after driving home again It suddenly went down to 10% what happened to the battery life?? I can't walk around with a generator in my pocket to keep it charged I then made my usual phone call at night which lasted 2 1/2 hours and normally I would be looking around using 30% tonight I used almost 80%!  

recalibrate the battery, let it completely drain out to where the phone shuts off and then fully charge it without using it.
here are some other tips http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/

Similar Messages

Maybe you are looking for