1. Turn your Dell D830N laptop over.
2. Find the laptop battery release button lock for your Dell D830N laptop.
3. Now that your Dell D830N 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 Dell D830N battery is removed, grab your replacement Dell D830N battery for installation.
6. Insert the battery into the slot. Push the Dell D830N battery towards the laptop and secure it in place.