Page 734 - Windows 10 May 2019 Update The Missing Manual: The Book That Should Have Been in the Box

In Battery Saver mode, your screen dims (screen brightness is one of the

biggest power drains). Apps running in the background go to sleep. You
don’t get notifications from apps. Things generally calm down and slow
down, and your battery lasts a lot longer.

You can adjust or override most of those features, by the way. In → →
System → Battery, you can fiddle with these switches (Figure 12-1):

Turn battery saver on automatically… If you turn off this
switch, you can still use Battery Saver—but you’ll have to turn it
on yourself.

[percentage slider]. Battery Saver likes to kick in when your
battery charge hits 20 percent. But using this slider, you can change

that threshold. You can set it to anything from 5 percent to 100
percent. (100 percent would mean “on all the time.”)

Battery saver status until next charge. This option is available

only when you’re actually running on battery, and it means “Turn
off Battery Saver when I plug in.”

Lower screen brightness while in battery saver. What if you
can’t stand your screen dimming? You can turn off that aspect of

Battery Saver here (but of course you won’t get as much battery
savings).