1. Turn your Sony 141804111 laptop over.
2. Find the laptop battery release button lock for your Sony 141804111 laptop.
3. Now that your Sony 141804111 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 141804111 battery is removed, grab your replacement Sony 141804111 battery for installation.
6. Insert the battery into the slot. Push the Sony 141804111 battery towards the laptop and secure it in place.