Apple iPhone 15

Apple iPhone 15

iOS 17

iOS 18 iOS 17

Short battery life on my Apple iPhone 15 iOS 17

Cause 7 of 15: The screen brightness is set too high

If your phone's screen brightness is set too high, the power consumption may increase.

Solution: Lower the screen brightness.

Step 1 of 8

Find "Display & Brightness"

Press Settings.

Step 2 of 8

Find "Display & Brightness"

Press Display & Brightness.

Step 3 of 8

Adjust screen brightness

Press and drag the indicator below "BRIGHTNESS" right or left to select the required brightness level.

Step 4 of 8

Adjust screen brightness

Press arrow left.

Step 5 of 8

Turn automatic brightness on or off

Press Accessibility.

Step 6 of 8

Turn automatic brightness on or off

Press Display & Text Size.

Step 7 of 8

Turn automatic brightness on or off

Press the indicator next to "Auto-Brightness" to turn the function on or off.

Step 8 of 8

Return to the home screen

Slide your finger upwards starting from the bottom of the screen to return to the home screen.

1 Find "Display & Brightness"

Press Settings.

Press Display & Brightness.

2 Adjust screen brightness

Press and drag the indicator below "BRIGHTNESS" right or left to select the required brightness level.

Press arrow left.

3 Turn automatic brightness on or off

Press Accessibility.

Press Display & Text Size.

Press the indicator next to "Auto-Brightness" to turn the function on or off.

4 Return to the home screen

Slide your finger upwards starting from the bottom of the screen to return to the home screen.