1. Turn your Gateway T-6823c laptop over.
2. Find the laptop battery release button lock for your Gateway T-6823c laptop.
3. Now that your Gateway T-6823c 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 T-6823c battery is removed, grab your replacement Gateway T-6823c battery for installation.
6. Insert the battery into the slot. Push the Gateway T-6823c battery towards the laptop and secure it in place.