1. Turn your HP zv5131ea laptop over.
2. Find the laptop battery release button lock for your HP zv5131ea laptop.
3. Now that your HP zv5131ea 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 zv5131ea battery is removed, grab your replacement HP zv5131ea battery for installation.
6. Insert the battery into the slot. Push the HP zv5131ea battery towards the laptop and secure it in place.