Applying different power modes using the Power-
Saving mode of your device
All Android devices possess a useful power-saving mode of certain types —
it may either be two or sometimes three of them. Head to the battery menu,
which is usually accessed in your device's Settings, and there you click on the
Battery option. And that is how it is on most
phones for you to see these
settings for your power saving mode. For instance,
Samsung offers us a
regular power-saving mode that reduces the screen brightness and makes the
device's CPU slower. Also then, there is yet an
ultra power saver that fully
locks the device to just a few essential applications by default. Finally, just
like those from Google, most phones grant us an offer of basic power saving
modes just like the former that can be switched on on their own when the
device reaches at a particular battery level — let's say 30%. This is definitely
something you should learn to set up.