Creating a Slick Battery Report to Show Surface Power History

Would you like to know how well your Microsoft Surface's battery performs?  Or like the ability to show exactly how long your specific Surface's battery is rated to last? Did you know that no two batteries have the exact same power capacity and that full charge degrades over time?

If these questions interest you, here's a neat trick.

This set of commands runs the Windows 8 powercfg utility to retrieve battery information, outputs the retrieved data to a battery-report.html file in the %tmp% directory, and then opens the battery-report.html file in the system's default browser.

The resulting report details the following:

It’s a slick report, but also extremely valuable to show battery life degradation over time.

P.S. This method works for any device with a battery running Windows 8 of Windows 7.