If you’ve just updated your iPhone with the latest iOS9, you may now find that you are having a battery drain problem. Many users have reported that they are having this issue after upgrading their device to iOS 9, if you are one of them, we have some tips that you can use to do this.
If none of the tips we have here work for you, you should take your device to Apple’s Service Center as it could be a hardware issue.
- Check which applications use most of your battery.
Note: Some applications consume battery power while the screen is on, and some do when the screen is turned off.
- When you find out which application uses most of your battery, delete it first and check for an update. Please install the update or reinstall the latest version. Disable iCloud Keychain. Many applications continue to run in the background even when you close them and still consume battery power. Set a limit or disable background app refresh.
- Select the app. You do not want running in the background or disable background app refresh. Reset all settings. This is the last option. First back up all your data, then use iTunes to restore the update.