Here are some things you can do to extend your PCs battery life.
Use battery saver
When battery saver is on, your PC temporarily turns off some things that use a lot of power, like automatic email and calendar syncing, live tile updates, and apps youre not actively using. Using battery saver is the easiest way to extend battery life.
Select the Start button, and then select Settings > System > Battery . If you want battery saver to turn on whenever the battery falls below a certain level, select Turn battery saver on automatically if my battery falls below: and set it where youd like. To turn on battery saver now and leave it on until the next time you plug in your PC, turn on Battery saver status until next charge.
Turn on battery saver in Settings
Change display settings
Adjust some of your PC's display settings to help extend battery life. For example:
Set a shorter duration for an active display.
Select the Start button, and then select Settings > System > Power & sleep . Under On battery power, turn off after, pick a shorter duration.
Open Power & sleep settings
Reduce your displays brightness.
Select the Start button, and then select Settings > System > Display . Turn off Change brightness automatically when lighting changes [if it appears], and then use the Change brightness slider to set the brightness level you want.
Open Display settings
Use a dark background.
Select the Start button, select Settings > Personalization > Background, and then choose a dark picture or dark solid color.
Open Background settings
Use a dark theme.
Select the Start button, select Settings > Personalization > Themes > Theme settings, and then choose a dark theme.
Open Themes settings
Change power settings
Adjust some of your PC's power settings to help extend battery life.For example:
Let Windows change some power settings for you automatically.
Select the Startbutton, and then select Settings > Update & security> Troubleshoot > Powerand then select Run the troubleshooter.
Open Troubleshooter
Set a shorter duration for when your PC sleeps.
Select the Start button, and then select Settings > System > Power & sleep . Under On battery power, PC goes to sleep after, choose a shorter duration.
Open Power & sleep settings
Disconnectfrom a Wi-Fi network when your PC sleeps.
Select the Start button, and then select Settings > System > Power & sleep >When my PC is asleep and on battery power, disconnect from the network. Change the setting to Always or Managed by Windows instead of Never.
This option isnt available on all PCs and depends on your PC hardware and manufacturer.
Put a lid on it.
Most laptops can go to sleep automatically by closing the lid. To set this, select the Start button, and then select Settings > System > Power & sleep > Additional power settings > Choose what closing the lid does.
Choose a lower power mode.
Select the Battery icon on the right side of the taskbar. To reduce power use, move the slider towardBest battery life.
This option isnt available on all PCs and depends on your PC hardware and manufacturer.
Just press a power button.
Most PCs let you turn off your display, shut down, sleep, or hibernate with a press of the Power button.
To choose what the power buttons do, select the Start button, and then select Settings > System > Power & sleep > Additional power settings,and then Choose what the power buttons do.
Change sync settings
Increase battery life by changing how frequently your PC syncs. For example:
Sync email less often.
Select the Start button, and then select Settings > Accounts > Email & accounts .
Open Email & account settings
Select the account that you want to change, and then select Manage > Change mailbox sync settings. Under Download new email, choose a longer interval.
Sync only the email, calendars, and contacts you want.
You dont have to sync email, calendars, or contacts unless you want to.
Select the Start button, and then select Settings > Accounts > Email & accounts .
Select the account that you want to change andtheManagebutton, and then selectChange mailbox sync settings. Under Sync options, select Email, Calendar, or Contacts to turn them off.
Other things you can do
Keep your PC plugged in until its fully charged.
To check your PCs battery level, move the mouse pointer over the Batteryicon on the taskbar, or go to Settings > System > Battery .
Restart your PC.
This can sometimes fix problems that can shorten battery life. Select the Start button, and then select Power > Restart.
Turn on airplane mode if you dont need Internet, Bluetooth, or other wireless communications.
Select the Start button, then select Settings > Network & Internet > Airplane mode , and turn on airplane mode.
Open Airplane mode settings
Use Microsoft Edge for browsing.
Tests show that when browsing with Microsoft Edge, your batterylasts 36-53% longer per charge than when browsing with Chrome, Firefox, or Opera on Windows 10.
For more info on batteries, see, Surface battery wont charge or Surface wont run on battery on Windows 10 or PC is charging slowly or discharging while it's plugged in.