iPhone 5S Battery Draining Very Fast?
I got my new iphone in the mail two days ago and when I am using it, the battery drains so fast its unbelievable. The other night I went to bed and it was 100%, woke up and it was 70%!! Also it doesnt stay on 100% as soon as you take it off charge it goes straight to 99%. I have done all the tips - turn off wifi, turn down brightness etc, but nothing works! Apple are no help either! Anyone else having this issue or know what I can do? They did a diagnostic test on my phone and the battery came up perfect.