1. Turn your Sony VGN-SR130NB laptop over.
2. Find the laptop battery release button lock for your Sony VGN-SR130NB laptop.
3. Now that your Sony VGN-SR130NB 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-SR130NB battery is removed, grab your replacement Sony VGN-SR130NB battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-SR130NB battery towards the laptop and secure it in place.