1. Turn your HP ZX5190US laptop over.
2. Find the laptop battery release button lock for your HP ZX5190US laptop.
3. Now that your HP ZX5190US 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 ZX5190US battery is removed, grab your replacement HP ZX5190US battery for installation.
6. Insert the battery into the slot. Push the HP ZX5190US battery towards the laptop and secure it in place.