Without third-party battery saving software, you can use the built-in Battery Saver feature to improve and extend the battery life by limiting background activities on Windows 10 operating system. This is very useful for tablet and laptop device while obviously it is not available on computers without batteries. Once you have actived it, the system tray will include a small green icon to indicate that.
How to Enable/Disable Battery Saver in Windows 10
Note: By default if the battery life go down below 20% level, the feature will be activated automatically in the system.
By the Setting
* From the desktop, click or tap the Start button, and click on the Settings. If you can’t find it, type Settings in the search box and then press Enter to open it.
* Click the System (Display, notifications, search and power) icon, and click Battery Saver option in the left-pane.
* In the right pane, you should see the overview of battery saver feature.
Click the Battery saver settings, check “Turn battery saver on automatically if my battery falls below” box, and move the slider bar from the default 20% to other value you want to have.
If you would like to completely disable Battery Saver, just uncheck the box.
Through power options
* In the system tray, right-click on the battery icon and select Power Options from the menu.
* Click the “Change plan settings” link next to the Balanced(recommended).
* Click Change advanced power settings, expand Energy saver settings > Charge level, and change the value to 0 (disable) or other like 50.