1. Turn your Acer 4730ZG laptop over.
2. Find the laptop battery release button lock for your Acer 4730ZG laptop.
3. Now that your Acer 4730ZG 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 4730ZG battery is removed, grab your replacement Acer 4730ZG battery for installation.
6. Insert the battery into the slot. Push the Acer 4730ZG battery towards the laptop and secure it in place.