1. Turn your Uniwill 259 laptop over.
2. Find the laptop battery release button lock for your Uniwill 259 laptop.
3. Now that your Uniwill 259 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 Uniwill 259 battery is removed, grab your replacement Uniwill 259 battery for installation.
6. Insert the battery into the slot. Push the Uniwill 259 battery towards the laptop and secure it in place.