1. Turn your Sony VGN-FS730W laptop over.
2. Find the laptop battery release button lock for your Sony VGN-FS730W laptop.
3. Now that your Sony VGN-FS730W 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-FS730W battery is removed, grab your replacement Sony VGN-FS730W battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-FS730W battery towards the laptop and secure it in place.