In this video I show how to extract and remove the battery off a laptop that I found. The battery holds 18650 cells that are the same cells used in tesla cars to power them, these cells are great for making your own diy projects like electric scooters or if you have more you can make your own powerwall for a solar grid or even your own electric car.
If you're lazy and want to just buy them go here: https://amzn.to/2IPmY7k