I don't know how some people get there mods so small. I had a time fitting all this stuff in there. The box is one of those 2X18650 boxes you get off ebay. I cut it down, filled, and painted it olive drab. I like it so far, but we'll have to see if it last. I'd like to thank Evolv for putting out a board that is so easy to use, a caveman with fat thumbs can do it.