1. Turn your Acer AS3003WCi laptop over.
2. Find the laptop battery release button lock for your Acer AS3003WCi laptop.
3. Now that your Acer AS3003WCi 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 AS3003WCi battery is removed, grab your replacement Acer AS3003WCi battery for installation.
6. Insert the battery into the slot. Push the Acer AS3003WCi battery towards the laptop and secure it in place.