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.
Reduce your display’s 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.
Use a dark background:
Select the Start button, select Settings > Personalization > Background, and then choose a dark picture or dark solid color.
Use a dark theme:
Select the Start button, select Settings > Personalization > Themes > Theme settings, and then choose a dark theme.
Change power settings:
Adjust some of your PC's power settings to help extend battery life. For example:
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.
Disconnect from 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.
Note: This option isn’t 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 toward the Best battery life.
Note: This option isn’t 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.
Other things you can do:
Keep your PC plugged in until it’s fully charged.
To check your PC’s battery level, move the mouse pointer over the battery icon on the taskbar, or go to Settings > System > Battery.
Turn on airplane mode if you don’t need the Internet, Bluetooth, or other wireless communications:
Select the Start button, then select Settings > Network & Internet > Airplane mode, and turn on airplane mode.
Use Microsoft Edge for browsing:
Tests show that when browsing with Microsoft Edge, your battery lasts 36-53% longer per charge than when browsing with Chrome, Firefox, or Opera on Windows 10.
General Guidelines:
Unplug unused peripherals:
Unplug any peripherals — say an external hard drive or webcam — while using battery power. In addition to transferring data between your device and your laptop, that cable is also drawing power to the peripheral itself even when you’re not using it. That’s an obvious drain on your laptop battery.
Plug it in before it dies:
PC World notes that a lot of us like to wait until our laptops are all but dead before we plug it in, which is bad for your battery. If at all possible, never drain your laptop battery below a 20% charge. This extends the life of your battery as used with a low charge puts a strain on the battery itself, and eventually reduces its charging capacity.
Keep your laptop out of hot and cold:
Use your laptop in situations where the ambient temperature is neither hot nor cold. Extreme temperatures cause your computer to work harder, which in turn drains the laptop battery faster. Too much exposure to these extremes can also damage the battery itself, shortening its useful life.
Do not keep your laptop plugged in:
What they found is that laptops plugged in constantly actually have a lesser number of cycles (think of the battery drained, then plugged into recharge — that is a cycle) than those who kept their batteries between 20% and 80%.
Do not feel the need to always charge your battery fully; it is not necessary. (Some computers may have a smart charging mode that will prioritize battery health, in which case you can keep it plugged in.)
Turn off Wi-Fi and Bluetooth:
Do not need connectivity? Turn those features off. Even if you are connected to Wi-Fi or Bluetooth, your device may still be searching for other connections. Although it is slight, maintaining that connection does suck up some laptop battery power. So if you don't need connectivity, just turn it off until you need it.