1. Turn your HP HDX18-1080ES laptop over.
2. Find the laptop battery release button lock for your HP HDX18-1080ES laptop.
3. Now that your HP HDX18-1080ES 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 HDX18-1080ES battery is removed, grab your replacement HP HDX18-1080ES battery for installation.
6. Insert the battery into the slot. Push the HP HDX18-1080ES battery towards the laptop and secure it in place.