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BrianG
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05.06.2007, 07:38 PM

Hmm, yeah, a little heavy/big for 8th-10th scale.

I'd be curious to see an eagletree graph with and without the caps to see how much they help the voltage stay steady, and to see if you can get the full Ah rating out of the battery since it isn't working as hard (in bursts).

Maybe a 5-10F setup would be a little better for smaller 8-10th scale vehicles, yet still provide close to the same benefits.
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GriffinRU
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05.06.2007, 08:38 PM

Quote:
Originally Posted by BrianG
Hmm, yeah, a little heavy/big for 8th-10th scale.

I'd be curious to see an eagletree graph with and without the caps to see how much they help the voltage stay steady, and to see if you can get the full Ah rating out of the battery since it isn't working as hard (in bursts).

Maybe a 5-10F setup would be a little better for smaller 8-10th scale vehicles, yet still provide close to the same benefits.
Tests and simulations shows that ESR is more important then capacity, but you cannot get low enough ESR without capacity. Basically your caps ESR must be equal or less then battery's, while over discharge batteries impedance goes up so that's where you start seeing benefits, not even mentioning temp.
   
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zeropointbug
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05.06.2007, 10:52 PM

These caps have much lower ESR than any battery available. I will be using 8 in series of the 120F cap, so 15F system with 20 volts capable. 0.0025 Ohm

It sure will be interesting. :027:


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