There are iOS apps to check the battery stats on an iDevice. Example: https://itunes.apple.com/us/app/battery-life-check-runtimes/id1080930585?mt=8 https://itun

There are iOS apps to check the battery stats on an iDevice. Example: https://itunes.apple.com/us/app/battery-life-check-runtimes/id1080930585?mt=8 https://itunes.apple.com/us/app/battery-life-check-runtimes/... (I have no affiliation with the app, just a satisfied user)