1. Turn your HP X18-1280EL laptop over.
2. Find the laptop battery release button lock for your HP X18-1280EL laptop.
3. Now that your HP X18-1280EL 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 X18-1280EL battery is removed, grab your replacement HP X18-1280EL battery for installation.
6. Insert the battery into the slot. Push the HP X18-1280EL battery towards the laptop and secure it in place.