The Traxxas 8s esc can run dual batteries but it can't run dual motors. Also it is a brushless esc. It is a 8s esc by running 2 4s lipos. I think you can run it at 6s by running 2 3s lipos. From what I remember the clodbuster is 1/10 and I think 8s is way too much for 1/10, 4s would be better.