1. Turn your Sony PCG-K22P laptop over.
2. Find the laptop battery release button lock for your Sony PCG-K22P laptop.
3. Now that your Sony PCG-K22P 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 PCG-K22P battery is removed, grab your replacement Sony PCG-K22P battery for installation.
6. Insert the battery into the slot. Push the Sony PCG-K22P battery towards the laptop and secure it in place.