1. Turn your Asus X61Gx laptop over.
2. Find the laptop battery release button lock for your Asus X61Gx laptop.
3. Now that your Asus X61Gx 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 Asus X61Gx battery is removed, grab your replacement Asus X61Gx battery for installation.
6. Insert the battery into the slot. Push the Asus X61Gx battery towards the laptop and secure it in place.