[FrankJ]

I am really mostly a mechanical guy so forgive me if this makes no sense.

The output of an unconnected jag would be a PWM square wave. Connect a motor to it, you are essentially throwing a big inductor with a little resistor in the loop? You would then have to look at it as system? Would resistance in the battery become an issue? Do have to admit the whole concept of DC & output of the jag is more of a metaphor that you are using to avoid confusing mechanical types that try to relate electricity to plumbing? After all the rate equations are the same.