1. Turn your HP ZE2117US laptop over.
2. Find the laptop battery release button lock for your HP ZE2117US laptop.
3. Now that your HP ZE2117US 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 ZE2117US battery is removed, grab your replacement HP ZE2117US battery for installation.
6. Insert the battery into the slot. Push the HP ZE2117US battery towards the laptop and secure it in place.