1. Turn your HP WQ678UA laptop over.
2. Find the laptop battery release button lock for your HP WQ678UA laptop.
3. Now that your HP WQ678UA 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 HP WQ678UA battery is removed, grab your replacement HP WQ678UA battery for installation.
6. Insert the battery into the slot. Push the HP WQ678UA battery towards the laptop and secure it in place.