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Originally Posted by BrianG
However, physcial load has to be taken into consideration. A heavy physical load, whether from a heavy vehicle or very tall gearing, effectively is trying to stall the motor, or at least slowing it down. The motor's coil resistance is a VERY small part of the current limiting factor. Most of the motor's resistance comes from inductive reactance from the back EMF of the coils and moving magnets.
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Yes, I agree completely. However, I guess what I'm getting at is that to do 1000w worth of work, you won't need as much current if you increase your voltage (I know we both agree on this part too.) Comparing the 2S to the 3S example, the current requirement is dropped by 45 amps (!) which is the main advantage. so my thought is with that much less current, there's got to be less resistive heating of the wiring. Drawing less current out of the battery means less heating there too.
I only say this because running my mamba max on a 3S, it runs surprisingly cool compared to my 6 cell NiMH pack. I'm chalking that up to the increased voltage, and that I don't have to have the throttle buried all the time.
Sleebus