1. Turn your HP dv6255ca laptop over.
2. Find the laptop battery release button lock for your HP dv6255ca laptop.
3. Now that your HP dv6255ca 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 HP dv6255ca battery is removed, grab your replacement HP dv6255ca battery for installation.
6. Insert the battery into the slot. Push the HP dv6255ca battery towards the laptop and secure it in place.