self-power-off
nounUK /ˌselfˈpaʊər ɒf/
US /ˌselfˈpaʊər ɔːf/
When a machine turns itself off without anyone pressing a button.
The tablet's self-power-off saved the battery after it sat unused for an hour.
RELATED WORDS
OTHER MEANINGS
2. A feature that lets a device shut down on its own after a set time.
Enable self-power-off in the settings so the screen goes dark at night.
3. The act of a system ending its own operation without outside help.
The satellite's self-power-off kicked in when its solar panels failed.
4. A setting that turns off a gadget automatically to save energy.
The self-power-off on the TV turns it off if no one touches the remote for two hours.