1. Emergency tricks - low power mode
If the phone is already very low at a time. Click "Settings" - "Battery" and check "Low Power Mode"
2. Turn off location services
You can turn it off by clicking "Settings" - "Privacy & Security" - "Location Services":
3. Background App Refresh
There's nothing to say about this function, just turn it off directly, click "Settings" - "General" - "Background App Refresh":
4. App is automatically updated
The higher the brightness of the screen, the more power consumption, so turn down the brightness of the phone to save power, of course, it is recommended to set it to automatic
In addition, you can also adjust the automatic lock time to the lowest level, so that the phone can enter the most power-saving state as soon as possible when it is not in use.