1. Turn your Sony VGN-SR220JH laptop over.
2. Find the laptop battery release button lock for your Sony VGN-SR220JH laptop.
3. Now that your Sony VGN-SR220JH 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-SR220JH battery is removed, grab your replacement Sony VGN-SR220JH battery for installation.
6. Insert the battery into the slot. Push the Sony VGN-SR220JH battery towards the laptop and secure it in place.