Use Low Power Mode
If you’re running low on battery and you know you won’t be able to charge your iPhone 13 for a while, you can turn Low Power Mode on so you can save some more battery throughout the day. This feature will reduce the background activity on your iPhone—like fetching mail or downloads—until your iPhone’s close to fully charged.
- Go to the Settings app.
- Scroll down and tap Battery.
- Toggle Low Power Mode on.
You’ll know it worked because the battery icon on your iPhone will turn yellow. You can also turn on Low Power Mode from your Control Center. Just make sure you have the option available by going to Settings > Control Center and then adding Low Power Mode.