Turn down the brightness of your screen
Most modern laptops allow you to control the brightness of the screen. As you might expect, the brighter the screen, the more power is required. Dim the screen and you could find that your battery lasts a lot longer.
Shut down programs that aren’t being used
It’s often the case that you’ll have a number of programs running, yet you’re only using one or two of them. Although you might not see them running, they could be running in the background, adding to your CPU load, and consuming more energy. Shut down the programs not in use and save energy. If you’re unsure about programs running in the background, simply open the task manager.
Clean the battery contacts
You should clean the connection points on your laptop’s battery every now and then. Dampen a cloth with alcohol and use it to clean the points. Clean points mean that electric current can pass through efficiently, meaning you save on wasted power.
Defragment your hard drive regularly
If you regularly defragment your hard drive, it will operate more efficiently. The more efficiently your hard drive operates, the less demand is placed on the battery, meaning you will get more life out of it! As an additional advantage, this will also help in speeding up your computer.