1. Turn your HP zx5113ea laptop over.
2. Find the laptop battery release button lock for your HP zx5113ea laptop.
3. Now that your HP zx5113ea laptop battery is unlocked, find the battery release button down.
4. Holding the laptop battery release button, gently pull your battery away from the laptop.
5. Now that your HP zx5113ea battery is removed, grab your replacement HP zx5113ea battery for installation.
6. Insert the battery into the slot. Push the HP zx5113ea battery towards the laptop and secure it in place.