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Just when you thought 1 Farad was big...

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Might be useful......if you can afford to wait a century or so for it to charge up ;)
 
Actually in total energy stored that capacitor is about the same as a common Sub C rechargeable battery cell. :p
 
Hi,


3000 Farads by itself isnt enough to go by. We'd also have to know the voltage rating. That would tell us how long we could charge it at say 1 ampere. If we charge it too long and the voltage exceeds the voltage rating, we blow up the cap and it becomes no good to us anymore except maybe for a one time use on the Fourth of July.
 
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3000 Farads by itself isnt enough to go by. We'd also have to know the voltage rating. That would tell us how long we could charge it at say 1 ampere.

The specs sheets from their web site say 2.7 volts so I suspect they are using standard super cap tech.
Granted their biggest ones are 4000 F 2.7 volts with a discharge current rating of something like 4050 amps!
 
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stantor: What do you mean it loses 900F ?

tcmtech: Very impressive. I usually need at least a 5 volt rating myself. 4050 amps, wow, that might come in handy.
 
it loses up to 900F sitting on a shelf for 20 days
No good keeping it in your spares box then. By the timeyou get round to using it its capacity will have dropped to 3000μF :)
 
stantor: What do you mean it loses 900F ?
see data sheet:
3000F
Shelf life \ 500 hours with no voltage applied at 60°C \ Capacitance change : <30% of initially measured values
So sitting on a shelf @ 60°C for 500 hours the capacitance can change up to 30%
30% of 3000F is 900F
500 hrs = ~21 days.
When you think of a shelf, usually it's in a climate controlled warehouse or something, so probably won't be 140°F (60°C). But a shelf in a service van sitting in a parking lot in Texas could easily be 140°F.
140°F isn't all that hot as far as electronics are concerned.
 
are you referring to the ones OP linked to? or some other model that has bus bar connections?

They are in the link under the data sheet PDF tabs and what not.
 
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