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Learn how to save battery life on an iPhone running Apple iOS 15. 


Battery saving mode

  1. From the Home screen, tap Settings > Battery.
  2. Tap the Low Power Mode switch ON.


View battery usage by app

  1. From the Home screen, tap Settings > Battery.
  2. Scroll down to view how much battery each app used. You can tap to view the last 24 hours or the last 10 days.
  3. Tap the app to see how much usage was on-screen and how much was background usage.


Tips to save battery life

  • Update to the latest software
  • Lower screen brightness and timeout duration
  • Turn off background data
  • Turn off Smartphone Mobile Hotspot
  • Turn on Airplane Mode if traveling to an area without mobile signal or Wi-Fi
  • Uninstall unused apps
  • Change application sync settings

Set device to sleep when unused

Press and then quickly release the Side button or Top button to set the screen to sleep mode.

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