1. Turn your HP DV7-4051NR laptop over.
2. Find the laptop battery release button lock for your HP DV7-4051NR laptop.
3. Now that your HP DV7-4051NR 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 DV7-4051NR battery is removed, grab your replacement HP DV7-4051NR battery for installation.
6. Insert the battery into the slot. Push the HP DV7-4051NR battery towards the laptop and secure it in place.