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BrianG
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Join Date: Nov 2005
Location: Des Moines, IA
03.03.2008, 04:50 PM

Yes, if running caps in parallel, you just add the values up. So, 4 x 440uF caps (what an odd value) is the same as 1 x 1760uF cap.

However, there is a point where you get smaller gains. Sure, you can add 20 caps and it would be cool, but would be a waste. Approximately doubling whatever is on the ESC would make the most difference and still be easy to fit on/near the ESC. Adding more certainly won't hurt (although it does make the initial hook-up spark bigger), but you just don't get the same amount of gain for the effort and cost. If your setup NEEDs the extra caps just to function and not overheat, maybe it's time for a different ESC choice.

Also, since these caps heat up, it's better to use several smaller ones in parallel because there is more surface area to help the air cool them. Plus, transient response is typically faster.
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