Ok, so you are telling me that if my amp draw is too high, I'll cook the battery pack else not have full potential of the motor.

Checking the amp draw will tell me if the batteries can 'push' as hard as the setup will draw right?

Ok, fair investement since I've dumped nearly all my gas stuff in favor of elec.

With that setup and a 'cheap' pack as I described, what kind of watts should I be looking at for one, or deciding on both packs?