1. Turn your HP dv4-1004tx laptop over.
2. Find the laptop battery release button lock for your HP dv4-1004tx laptop.
3. Now that your HP dv4-1004tx 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 dv4-1004tx battery is removed, grab your replacement HP dv4-1004tx battery for installation.
6. Insert the battery into the slot. Push the HP dv4-1004tx battery towards the laptop and secure it in place.