Android
Adjust Screen Timeout Duration auf Android
Screen timeout is the timer that decides how long your display stays active after your last touch. Once that time runs out, Android turns the screen off and puts the device into sleep mode to save power.
A short timeout is efficient for battery life but can feel annoying if the screen keeps locking while you read or fill out a form. A long timeout is more comfortable but keeps the display lit longer than necessary, which adds up in battery drain over a day.
Where to change it
The setting sits in the display options of the system settings, not in a separate battery menu. Open Tap on Settings ➔ Tap on Display ➔ Tap on Screen timeout ➔ Set the duration until the screen timeout. Pick a duration from the list; most devices offer options from 15 seconds up to several minutes, plus a 'Never' option on some phones.
If the screen still turns off earlier than the value you picked, check whether a battery saver mode or an app-specific power restriction is overriding the setting. Screen timeout only controls idle behavior — apps that actively keep the display on, like video players, use a separate wake lock and are not affected by this value.