1. Turn your Sony VGN-SR590FHB laptop over.
2. Find the laptop battery release button lock for your Sony VGN-SR590FHB laptop.
3. Now that your Sony VGN-SR590FHB 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-SR590FHB battery is removed, grab your replacement Sony VGN-SR590FHB battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-SR590FHB battery towards the laptop and secure it in place.