1. Turn your Acer 9J.N1H82.01D laptop over.
2. Find the laptop battery release button lock for your Acer 9J.N1H82.01D laptop.
3. Now that your Acer 9J.N1H82.01D 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 Acer 9J.N1H82.01D battery is removed, grab your replacement Acer 9J.N1H82.01D battery for installation.
6. Insert the battery into the slot. Push the Acer 9J.N1H82.01D battery towards the laptop and secure it in place.