HT205727: If your iPhone 6s or iPhone 6s Plus battery percentage doesn't update
Learn about If your iPhone 6s or iPhone 6s Plus battery percentage doesn't update
Close
Q: BATTERY ON IPHONE 6S DRAIN SO FASTLY
-
Jun 21, 2016 12:23 AMby Ingo2711,Did you already force restart your devices by holding the sleep and home button for about 10sec, until the Apple logo comes back again?
You will not lose data by doing that, but it can clear some glitches after installing new apps or software.
If this does not help, setting it back to factory settings would be the next step, to make sure that the issues are not software related.
Use iTunes to restore your iOS device to factory settings - Apple Support
Maybe also take a look at this page about battery drainage
