The battery powers the laptop. Before taking anything out of the laptop, always remove the battery to avoid shocking yourself and damaging other components. Over time, the battery will lose the ability to charge. Replace the battery with a new one to regain your original battery life.
Place the laptop on a flat surface with the bottom side facing up.
Place the tip of a spudger or finger into the hole on the battery release slider.
Use the spudger to move the slider to the right and hold it there.
With the slider held, use your other hand to pull the battery back away from the laptop.