Power your Kano Computer with a mobile phone external battery pack. I tried two different kinds of battery pack, but was successfully able to power the Kano computer with an Xtreme Power Bank that I got for $5.00 USD at a store called Five Below. I use the battery pack when I need to photograph or video a Kano Computer project at my table top photo studio. While the Kano is connected to my TV, I boot up with the battery pack, run my program, disconnect from the TV and take the Kano to my desktop studio to photograph or shoot video.