Verge Battery Test Questions

A few questions regarding the aforementioned battery test:

-What is it exactly (regarding file format)? How do you install it? Can I download it?

-How do you test the devices' battery life? (with how many apps installed, multitasking enabled or not)

-How do you calculate "65% percent of the device's battery life"?

If any people from the Verge team could respond, that would be great as I want to see if my devices can match the battery life that the Verge states. Thanks!