1. Turn your Gateway CX2620 laptop over.
2. Find the laptop battery release button lock for your Gateway CX2620 laptop.
3. Now that your Gateway CX2620 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 CX2620 battery is removed, grab your replacement Gateway CX2620 battery for installation.
6. Insert the battery into the slot. Push the Gateway CX2620 battery towards the laptop and secure it in place.