To extend your laptop’s battery life, change your power profile to Power Saver, lower the screen brightness, and turn off the keyboard backlighting. If you’re not using your laptop, turn it off, or set it to hibernate after a short period of inactivity.
Turn the Brightness Down
Reduce monitor brightness. A bright monitor will lap up your battery. Reduce screen brightness as much as possible without straining your eyes. There are two ways you can do this. First, keep the brightness level low unless you really need it.
Go to your settings and also turn off the keyboard lights. This will save you plenty of power and prolong your battery runtime.