Ios 11 battery drain
apple- despite taking all precautions to preserve battery life, my phone battery is losing 30% in less than 40 minutes since upgrading to iOS 11. My personal useage of the phone has not changed at all. Please fix this problem.
terrier13,
1) Have you tried a restart? If not, do it now.
2) See the section "View battery usage information" in the link below to see the apps that are consuming your battery:
Maximizing Battery Life and Lifespan
3) If you have not upgraded to iOS 11.4, do it now and then check "battery health beta":
iPhone Battery and Performance
4) If all else fails, consider a battery replacement:
Good luck.