So I can't figure this out and neither can apple! My battery usage continues to climb while my iphone 6 isn't in use. I'll unplug my phone, drive to work and when I get there it's at 20 min usage without even waking it up. I've done restores, closed all apps, background refresh off and still same problem. Not sure if others are having this problem too, or if this will be resolved in a future update. Please help with any ideas.