The Maker Show: Mini - Prelude to the Tessel 2

In this Maker Mini, @pjdecarlo walks through an elaborate demonstration of Windows IoT Core and Azure Machine Learning that was recently unveiled at the Microsoft exhibition booth at First Robotics 2016 in St. Louis, MO.
We'll check out brand new features included in the current preview release of Windows IoT Core, notably the Windows IoT Remote Client and PWM Bus Provider. Plus we will get to see an example of an Machine Learning Experiment being piped into a web-frontend for a live simulation that you can replicate for yourself @ internetofyourthings.com.
Resources:
Hardware:
Love it!
Hi,
Awesome the prototype I like it.
Could you told about the battery used there, please? Where I can find it?
Regards,