Hello, (note I didn't notice this in the beta versions of iOS 8 on iPhone 5s) Setting -> General -> Usage -> Battery Usage Once I unplug from a full charge, the values are reset to 0 (Usage and Standby). All goes well for a few hours, then it resets to '-' and the "Usage times will be shown after the iPhone is fully charged" msg is shown. I haven't put it back on the charger or turn off/reboot. It goes for about 8 hours and then resets. Any ideas why? Or has anyone seen similar?