iPhone users complain iOS 16 is a battery drain, has other issues
iOS 13 Battery Drain: 15+ Tips to Make Your Battery Last Longer - 3uTools
iOS 14.5 Battery Drain Test on iPhone 11, iPhone 8, iPhone SE
iOS 13 Battery Drain Issues: 10+ Tips to Improve iPhone Battery Life
Help] WiFi idle energy battery drain. Woke up and phone was at 50% from 100%. I've had battery drain issues since updating to iOS 13.3 from 12.4 : r/jailbreak
iOS 13 Battery Drain: 15+ Tips to Make Your Battery Last Longer - 3uTools