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glassdoctor
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Location: Iowa... Hawkeye country
11.19.2006, 09:41 AM

Quote:
Originally Posted by sleebus.jones
Sorry, no it doesn't. As voltage goes up less amperage is needed to do the same amount of work. That is because of this relationship here:

Amps = Watts / Volts

Say for instance, we have a 1000w motor on a 6 cell pack:

139A = 1000w / 7.2v

Now, let's upgrade that to a 10 cell pack:

83A = 1000w / 12v

See? The amps went down, not up. If the amps stay the same when the voltage went up, that would mean the motor somehow make more power...which can't happen, because the motor is unchanged.

What this vendor is asserting with their numbers is that the same motor can do more work with more voltage. That makes no sense.

Sleebus
I'm sorry, but you are mistaken. Period. I don't know where to start. You have the whole concept backwards.

The formulas are correct but you are applying them in reverse.

Somebody here has to see this besides me....?
   
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