1. Turn your Sony VGN-A130 laptop over.
2. Find the laptop battery release button lock for your Sony VGN-A130 laptop.
3. Now that your Sony VGN-A130 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-A130 battery is removed, grab your replacement Sony VGN-A130 battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-A130 battery towards the laptop and secure it in place.