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glassdoctor · 11.19.2006, 10:05 AM

[QUOTE=BrianG]This thread seems a bit confusing. I agree with GD for the most part.QUOTE]

That's because I'm right, BrianG :005:

Look at it this way.... run your car with a watt meter/data recorder in it... on whatever battery you normally run in it.

Now add one more cell to it and run it again. Amps (and watts) go up, not down.

That's just the facts, it's the way things work.

This is not meant to be confused with using higher voltage to be able to run lower gearing and/or lower kv motors to get greater efficiency. I think some are not focusing on the original question about the motor specs.

10v at 100A= 1000W
20v at 50A= 1000W
100v at 10A= 1000W

This is true, obviously.... but you can't apply it backwards to our cars and say that a given motor will put out a constant 1000W, therefore, if you run it on more volts, the amps will go down.

Again load (gearing) has a big effect on the amp draw, and it's possible that a setup geared for the same top speed may indeed draw less amps on 5s than on 4s with the same performance. I'm sure this is what everyone is thinking of if they disagree with what I have posted. But that's not the point in question.

	(#30)
glassdoctor TEAM FUSION Offline Posts: 2,041 Join Date: Jul 2006 Location: Iowa... Hawkeye country	11.19.2006, 10:05 AM [QUOTE=BrianG]This thread seems a bit confusing. I agree with GD for the most part.QUOTE] That's because I'm right, BrianG :005: Look at it this way.... run your car with a watt meter/data recorder in it... on whatever battery you normally run in it. Now add one more cell to it and run it again. Amps (and watts) go up, not down. That's just the facts, it's the way things work. This is not meant to be confused with using higher voltage to be able to run lower gearing and/or lower kv motors to get greater efficiency. I think some are not focusing on the original question about the motor specs. 10v at 100A= 1000W 20v at 50A= 1000W 100v at 10A= 1000W This is true, obviously.... but you can't apply it backwards to our cars and say that a given motor will put out a constant 1000W, therefore, if you run it on more volts, the amps will go down. Again load (gearing) has a big effect on the amp draw, and it's possible that a setup geared for the same top speed may indeed draw less amps on 5s than on 4s with the same performance. I'm sure this is what everyone is thinking of if they disagree with what I have posted. But that's not the point in question.