overlord
Senior Member
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Post by overlord on Nov 11, 2014 11:14:34 GMT 10
Since batteries are in AH and Capacitors are in Farads, how do I compare what size capacitors to the equivalent batteries?
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Post by thereth on Nov 11, 2014 11:23:15 GMT 10
that was fantastic, luckily i understood most of it but it was great fun to watch and relearn a couple of things from my apprentice days!
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Post by You Must Enter A Name on Nov 11, 2014 17:25:24 GMT 10
Since batteries are in AH and Capacitors are in Farads, how do I compare what size capacitors to the equivalent batteries? I found this a bit tricky to. The answer in very simplistic terms is that you cannot. They are not the same thing expressed in different units, they are different things completely. That was what I got from googeling like mad However I did have a guide that offered a decent rough indication.
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overlord
Senior Member
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Post by overlord on Nov 11, 2014 17:31:27 GMT 10
I kinda found something that said 1 Farrad is equal to 1Ampere/Second at 1 Volt. To get 1 Ampere-Hour at 12 volts, you would need approximately: 12 (for the volts) x 3600 (for the seconds in an hour) = 43,200 Farrads... If this were true, then I think I will just buy some batteries
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Post by You Must Enter A Name on Nov 11, 2014 17:44:24 GMT 10
well I have a torch that hand cranks for thirty seconds, givens 90 seconds of light using a 1F capacitor. not 100% ideal I get that, but that's only 1F and it shouldn't fail in my lifetime. We each have our preferences though I respect your desire to stick with batteries, after all they are proven technology.
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overlord
Senior Member
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Post by overlord on Nov 12, 2014 12:39:00 GMT 10
well I have a torch that hand cranks for thirty seconds, givens 90 seconds of light using a 1F capacitor. not 100% ideal I get that, but that's only 1F and it shouldn't fail in my lifetime. We each have our preferences though I respect your desire to stick with batteries, after all they are proven technology. Actually, I do have 2 of those capacitor crank flashlights and I find them useful on the fly. Capacitors are ok for small stuff but I wouldn't create capacitor banks for solar energy.
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brad
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Post by brad on Nov 12, 2014 12:51:17 GMT 10
Dummies version = Crazy Russian Hacker on youtube. He has made many videos on candles from things like oranges and random household items.
Well worth a look and all his videos.
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remnantprep
Senior Member
People do not exist for the sake of governments!
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Email: remnant@ausprep.org
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Post by remnantprep on Nov 12, 2014 12:58:43 GMT 10
I like Crazy Russian hacker!
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Post by You Must Enter A Name on Nov 12, 2014 13:04:32 GMT 10
well I have a torch that hand cranks for thirty seconds, givens 90 seconds of light using a 1F capacitor. not 100% ideal I get that, but that's only 1F and it shouldn't fail in my lifetime. We each have our preferences though I respect your desire to stick with batteries, after all they are proven technology. Actually, I do have 2 of those capacitor crank flashlights and I find them useful on the fly. Capacitors are ok for small stuff but I wouldn't create capacitor banks for solar energy. 100% agree mate
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