I knew I could count on you all. That makes sense now. Thanks for schooling me, and helping my buddy out.
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Originally Posted by BrianG
First of all, the overall power a system will draw is determined by vehicle weight, geared speed, terrain, drive style, motor efficiency, etc. Then, you use ohm's law to calc current based on the power needs and voltage used.
There is no way to exactly calculate amp draw since there are so many variables, but you can get fairly close.
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Fairly close is what he was looking for. As I said, I know these are rough estimates, and that there are many variables that, in the real world, influence amp draw, but fairly close should be fine for his purposes.
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Originally Posted by BrianG
The "car/truck setup guide" and similar tools (link in my sig) can give you a starting point.
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That was the first place I went to see if I could find an answer to these questions.
Quote:
Originally Posted by BrianG
Also, be careful with amp specs on ESC's and motors. Some may be inflated to make them seem better than they are in reality.
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I know that's a common practice with some less than scrupulous battery manufacturers, but I was unaware that some companies inflate their ESC specs as well. Thanks for the heads up B. Seems to me that inflating an ESC's specs would just be asking for trouble, but I guess it is what it is. (Gee... Traxxas inflating a claim? I'd have never guessed that.
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