Alright guys, I just set up a mini inferno-t w/ these cells. I am running an a123 cell on each side w/ a mamba system. It delivers plenty of power for racing this thing too. I get a lot more punch then I was getting and top out at around 25-30 m.p.h. which is more then enough for racing these things off road. The cells also fit perfectly into the little battery boxes too. If you want more speed for bashing around then pick up that voltage converter that a123 sales and you can run w/ 10.8volts.