I hooked up my sabertooth 2x12A to 2 200w wheelchair motors. Assuming 200w under 24v are draining 8A only. I used RC receiver as the input signal. So when I connected everything and tried to adjust balance output of the elevator, the controller board emitted white smoke and fried.
Is the board too small for 200W motors? The wheels were not even on the ground so there was no load (other than some small torque from the wheel).
I bought 2x32A to replace that not sure if it's good enough..