1. Turn your HP dv5115nr laptop over.
2. Find the laptop battery release button lock for your HP dv5115nr laptop.
3. Now that your HP dv5115nr 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 dv5115nr battery is removed, grab your replacement HP dv5115nr battery for installation.
6. Insert the battery into the slot. Push the HP dv5115nr battery towards the laptop and secure it in place.