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BrianG · 02.15.2009, 04:23 PM

There is quite a bit of difference between caps and batteries. Batteries release energy through a chemical process, and the cells have a fairly constant voltage. While caps simply discharge via the built-up energy between their plates. A cap might be at X voltage, but as soon as you put a load on them, the voltage drops more and more until discharged.

Now, caps can be used in conjunction with batteries for best results. A suitable array of caps can be used to supply the burst currents that is pulled when accelerating and take-off. The batteries would see a more constant current load. This would reduce the need for such high C rate batteries.

I guess if you want to equate a cap as a battery, think of caps like low mAh, very high C rate cells...

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	02.15.2009, 04:23 PM There is quite a bit of difference between caps and batteries. Batteries release energy through a chemical process, and the cells have a fairly constant voltage. While caps simply discharge via the built-up energy between their plates. A cap might be at X voltage, but as soon as you put a load on them, the voltage drops more and more until discharged. Now, caps can be used in conjunction with batteries for best results. A suitable array of caps can be used to supply the burst currents that is pulled when accelerating and take-off. The batteries would see a more constant current load. This would reduce the need for such high C rate batteries. I guess if you want to equate a cap as a battery, think of caps like low mAh, very high C rate cells...