1. Turn your Sony VGN-A600P laptop over.
2. Find the laptop battery release button lock for your Sony VGN-A600P laptop.
3. Now that your Sony VGN-A600P 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-A600P battery is removed, grab your replacement Sony VGN-A600P battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-A600P battery towards the laptop and secure it in place.