1. Turn your Acer 1662WLMI laptop over.
2. Find the laptop battery release button lock for your Acer 1662WLMI laptop.
3. Now that your Acer 1662WLMI 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 1662WLMI battery is removed, grab your replacement Acer 1662WLMI battery for installation.
6. Insert the battery into the slot. Push the Acer 1662WLMI battery towards the laptop and secure it in place.