1. Turn your Sony VGN-AW220J laptop over.
2. Find the laptop battery release button lock for your Sony VGN-AW220J laptop.
3. Now that your Sony VGN-AW220J 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 Sony VGN-AW220J battery is removed, grab your replacement Sony VGN-AW220J battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-AW220J battery towards the laptop and secure it in place.