1. Turn your Dell A198 laptop over.
2. Find the laptop battery release button lock for your Dell A198 laptop.
3. Now that your Dell A198 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 A198 battery is removed, grab your replacement Dell A198 battery for installation.
6. Insert the battery into the slot. Push the Dell A198 battery towards the laptop and secure it in place.