Laptops are usually equipped with suitable batteries to work on it for several hours, and the number of these hours varies depending on the battery life and the applications you are working on. Here are general tips for maintaining a laptop battery:
Lowering the screen brightness
The screen is one of the biggest drains on battery life, so when you dim the screen you'll add about 30 minutes of battery life.
Most laptops have shortcuts to control the brightness, usually by pressing the Fn key with one of the top function keys, or directly you will find a key with the sun symbol next to it with a + or – sign, toggle between them to control the brightness.
If you are unable to do so, press the Windows key and then the X. A menu will appear, choose Power Options, then from the window that appears in front of you, go to Display from the menu on the right of the window, and here you can control the brightness as you wish.
Turning off the keyboard backlights
The keyboard backlight and screen lighting are a huge drain on your laptop battery, so you should turn it off when you don't need it. Your computer may also have keyboard lighting toggles, or you can turn them off by going to Settings.
Disable Wi-Fi and Bluetooth
If you do not need to use Wi-Fi or Bluetooth, disable it because it drains the laptop battery life by a significant amount!
Most devices have a switch to disable these options. If you're not sure, head over to the Control Panel and scroll through the devices until you find them and disable them.
Do not leave the device in charge permanently
It is not good to leave the computer in the socket permanently, as this leads to the life of the laptop battery and becomes weaker with time. Some manufacturers also provide a utility that limits the battery's full charge because fully charging it also reduces its life. These tools help prevent battery life from deteriorating over time and allow you to always leave your computer plugged in.