1. Turn your Compaq 705CA laptop over.
2. Find the laptop battery release button lock for your Compaq 705CA laptop.
3. Now that your Compaq 705CA 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 705CA battery is removed, grab your replacement Compaq 705CA battery for installation.
6. Insert the battery into the slot. Push the Compaq 705CA battery towards the laptop and secure it in place.