Power source to run my robot

I am using this motor https://www.pololu.com/product/2827, i want to run the motor 1 hour on battery power continously. What is the battery spec i can use for this application. Is ther any suitable battery available in Pololu?

You must first measure the average current draw of the motor while the robot is running.

To calculate the required battery capacity in Ampere-hours, multiply the average current draw in Amperes with the number of hours to run, and then double that number for safety.