The Rebel Rc esc is no joke. Runs on 2 or 3 s lipos. I had a slight problem with one. The company has since sent me a new one no questions asked. I don't know what happened to it. All I know is it has a little poof of smoke and didn't work. But like I said no worries. The company stands behind their products and sent me a new one. I will stand next to them and run their stuff. Top notch company.