1. Turn your Compaq C762NR laptop over.
2. Find the laptop battery release button lock for your Compaq C762NR laptop.
3. Now that your Compaq C762NR 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 Compaq C762NR battery is removed, grab your replacement Compaq C762NR battery for installation.
6. Insert the battery into the slot. Push the Compaq C762NR battery towards the laptop and secure it in place.