1. Turn your HP ZD7310us laptop over.
2. Find the laptop battery release button lock for your HP ZD7310us laptop.
3. Now that your HP ZD7310us 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 ZD7310us battery is removed, grab your replacement HP ZD7310us battery for installation.
6. Insert the battery into the slot. Push the HP ZD7310us battery towards the laptop and secure it in place.