1. Turn your HP ZD8250LA laptop over.
2. Find the laptop battery release button lock for your HP ZD8250LA laptop.
3. Now that your HP ZD8250LA 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 ZD8250LA battery is removed, grab your replacement HP ZD8250LA battery for installation.
6. Insert the battery into the slot. Push the HP ZD8250LA battery towards the laptop and secure it in place.