1. Turn your Gateway M280E laptop over.
2. Find the laptop battery release button lock for your Gateway M280E laptop.
3. Now that your Gateway M280E 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 Gateway M280E battery is removed, grab your replacement Gateway M280E battery for installation.
6. Insert the battery into the slot. Push the Gateway M280E battery towards the laptop and secure it in place.