1. Turn your Advent 8117 laptop over.
2. Find the laptop battery release button lock for your Advent 8117 laptop.
3. Now that your Advent 8117 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 Advent 8117 battery is removed, grab your replacement Advent 8117 battery for installation.
6. Insert the battery into the slot. Push the Advent 8117 battery towards the laptop and secure it in place.