I'm on my third iPhone 5S- the first was replaced for touch ID issues and the next for battery life issues. Since the whole battery life thing I've been a bit neurotic about checking the usage and battery percentage. The new phone has been working great (10% per hour of usage) This morning when I finally got on train for work this morning I was already down 20% usage despite only checking the weather. I checked the usage and it said "usage: 2 hours and 1 minute" and "standby: 2 hours and 1 minute" - I had no music playing, no background apps, etc. there was definitely not two hours of usage, but it drained as if there had been. Is there a fix to this?? I REALLY don't want to go back to the apple store, again. This is getting beyond frustrating.