I'm using a pair of drone motors in order to power a small vehicle. I have a 56V lawnmower battery, to which I will connect the two 22V motors in series. I need to be able to control the speed of the motors while in flight, bringing them down to 0 RPM or up to around 4,000 RPM.
I'm going to use an electric speed controller to do this. Does my ESC need to be rated to the 'remainder' voltage after the two motors, 12V? Or does it need to be rated to the voltage of the battery, 56V? I'm having significant trouble finding a 56V ESC.