Author Topic: A 2600 Farad Cap!!!!  (Read 6188 times)

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Offline House91320

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A 2600 Farad Cap!!!!
« on: November 06, 2010, 05:45:19 am »
I am not acutely selling this but I found it and thought allot of people would be interested, a 2600 farad cap fro $12.50. http://www.goldmine-elec-products.com/prodinfo.asp?number=G17960 :o
 

Online slburris

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Re: A 2600 Farad Cap!!!!
« Reply #1 on: November 06, 2010, 01:42:13 pm »
That's their wimpy little capacitor :-)

They have a 3000F cap as well:

http://www.goldmine-elec-products.com/prodinfo.asp?number=G17930

Tech docs here:

http://www.maxwell.com/ultracapacitors/products/large-cell/bcap3000.asp

I kinda wonder about this spec though

"Over 1 million duty cycles"

Maybe I'm not familiar with the ultra large capacitors, but I'm not used
to seeing a wearout rating like this.  I wonder if this is an aerogel?

Scott
 

Offline House91320

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Re: A 2600 Farad Cap!!!!
« Reply #2 on: November 06, 2010, 05:28:58 pm »
The cool thing is you can use it as a battery which is what I want to do.
 

Offline Zero999

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Re: A 2600 Farad Cap!!!!
« Reply #3 on: November 06, 2010, 07:58:16 pm »
I kinda wonder about this spec though

"Over 1 million duty cycles"

Maybe I'm not familiar with the ultra large capacitors, but I'm not used
to seeing a wearout rating like this. 
That rating is meaningless without specifying the load and voltage.

I imagine that charging/discharging quickly will cause more wear and tear than slow charge/discharge.

 

Offline .o:0|O|0:o.

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Re: A 2600 Farad Cap!!!!
« Reply #4 on: November 06, 2010, 11:18:43 pm »
How would you verify that it really is a 2600 or 3000 F cap? Specialised meter or time constant and stopwatch?

.o:0|O|0:o.
 

Offline Zero999

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Re: A 2600 Farad Cap!!!!
« Reply #5 on: November 07, 2010, 08:30:33 am »
I'd build an RC oscillator and use a timer.
 

Offline david77

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Re: A 2600 Farad Cap!!!!
« Reply #6 on: November 07, 2010, 07:18:01 pm »
Ahem, Shafri the post above was for a 2600 Farad (!) cap... not one of those boringly small car hifi caps.
 ;)
 

Offline Murphy

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Re: A 2600 Farad Cap!!!!
« Reply #7 on: November 07, 2010, 11:14:58 pm »
http://www.maxwell.com/images/products/ultracapacitors/BMOD0083-A_lo_med.jpg

Those maxwell boostcaps are AWESOME.

edit: and expensive =(
 

Offline scrat

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Re: A 2600 Farad Cap!!!!
« Reply #8 on: November 09, 2010, 09:34:45 am »
The cool thing is you can use it as a battery which is what I want to do.

Pay attention at the fact they usually have a relatively high leakage.
One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man. - Elbert Hubbard
 

Offline JohnS_AZ

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Re: A 2600 Farad Cap!!!!
« Reply #9 on: November 10, 2010, 03:37:55 pm »
I'm either at my bench, here, or on PokerStars.
 

Offline rasto

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Re: A 2600 Farad Cap!!!!
« Reply #10 on: November 26, 2010, 01:30:04 pm »
The cool thing is you can use it as a battery which is what I want to do.

Pay attention at the fact they usually have a relatively high leakage.

That's true, I've build charging circuit which charges 1Farad capacitor in car through lighbulb when turn on my radio. Even capacitor this small discharged car battery in 2-3 weeks.

If anybody would be interested I can post circuit.
 


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