Watts is watts?

Hey guys,

Like many of you, I'm eagerly awaiting and anticipating the release of the Mamba Monster Max. I'm currently running a few Mamba Max escs in my 1/8 scale conversions and, for the most part, really like them. The only reason that I'm awaiting the MMM is so that I can run more than 4S lipo.

I think it is an agreed upon thing when I say that voltage is your friend and it's better to run a higher voltage and draw fewer amps to perform a task.

Please forgive me if this gets overly simplistic, but I am relatively new to having to be even worried about all of this.

So...just to keep things simple, let's just say that I'm running a 4S 4Ah pack, which is capable of delivering around 59.2Wh of power (A*V, is that right?). Now, let's just assume that I want to have the same power on tap, but in a 6S configuration. I would divide 59.2 by the voltage of the 6S pack (22.2v) to find that I would need a 2.7Ah pack to have the same power on tap.

At this point, it appears to me that to run a more efficient system, you don't necessarily need to run a physically larger battery pack. You just need more, but smaller cells to get the same amount of stored energy.

To apply that to actually running a system in a buggy/truggy, let's just assume that I'm running a 7XL, with a target max rpm of 30K, on 4S Lipo and it's max current draw is "X." If the above is true, and I can make a correlation, then...with the above example, the 6S pack only has to have about 68% of the capacity of the 4S pack to have the same stored energy. Is this to say that (assuming that the batteries being used can meet the current demands of the system in which they are running) running a system, with a target rpm of 30K on 6S lipo will only require 68% of the current that the 4S system would need. If this is true, then the advantages of running higher voltage would be at least two fold.

First, you would have the advantage of the motor running more efficiently, requiring less current.

Second (and this is the biggie for me), you wouldn't necessarily have to bother with getting the latest and greatest cells that can deliver 100+ amps of current without significant voltage drop. If the above is true, in the instance where I would need a good 20C pack for the 4S setup, the 6S setup would only require a good 15C pack, which is much less expensive.

Is this right or am I off of my rocker?