1. Turn your Sony VPC-EB3PGX laptop over.
2. Find the laptop battery release button lock for your Sony VPC-EB3PGX laptop.
3. Now that your Sony VPC-EB3PGX 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 VPC-EB3PGX battery is removed, grab your replacement Sony VPC-EB3PGX battery for installation.
6. Insert the battery into the slot. Push the Sony VPC-EB3PGX battery towards the laptop and secure it in place.