Which Controller for My Application?

[RC-Monster Mike]

As rene said, the 18 cell controllers are approved for 20 cells, so you won't have any trouble with that area. I have run 22.2 volts through my warrior with no problems. I wouldn't go with such a hot motor, though. I use an xl2400 and it is almost too fast for the track on 18.5 volts. For 22.2 volts, I would use an xl2000 motor (or maybe even an xl1600). The warrior will handle the voltage on either of these motors just fine - even in So-Cal. Trust me when I say the xl3100 is too much motor for that voltage.