mxlemming said:Phase amps is the correct way to rate a controller.
With 100 battery amps you can generate pretty much any amount of phase amps. Currently on my test bench I'm generating 270 phase amps from 17A battery at 24V.
Battery amps has no useful meaning.
Not exactly true if you are running very high phase resistance motors like typical ebike motors
But I agree that you should look at phase amps first and how long the controller can sustain THEM.