1. Turn your Asus N61J laptop over.
2. Find the laptop battery release button lock for your Asus N61J laptop.
3. Now that your Asus N61J 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 N61J battery is removed, grab your replacement Asus N61J battery for installation.
6. Insert the battery into the slot. Push the Asus N61J battery towards the laptop and secure it in place.