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Old 05-15-2013, 10:02 AM
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Default Charging supercaps....

Alright guys. I thought I would make a little video of the charging process of a bank of 6 2700 farad caps. Some people may be a little intimidated about the process, so I thought I would give them an idea both visually as well as with the meters so you can get an idea of what kind of current these things can draw when charging up.
Its really not as bad as some may think. Just make sure you have large enough wire to handle the current, don't try using some cheap under sized 10ga or you will probably melt it. Get some good 4ga or larger and you will be fine. Or do as I did and use some jumper cables.
I chose to use a small 35ah battery as you can see as my main source to bring them up to a decent voltage were the charger will handle it. As you can see in the video the intial current spike is 200A+(which is probably due to the batteries limited capacity, I have no doubt had I used a larger battery current draw would have been greater. But still 200A is usually to much for any normal charger to handle.
So anyway I seriesed all the caps together for a 15v bank. I charged them up with the battery intially then I used my Diehard 2/10/50A charger to top them off. I have had this charger for years and have monitored it very closely. It always has shut down right around 14.3/4v and floats from there until it drops below 12.7v I believe.
Well as you can see in the video its a pretty simple task and people shouldn't be too intimidated about the process. HOWEVER, once charged they do hold a LOT of energy that will do some damage. So once the are charged be VERY carefull with them.
http://s307.photobucket.com/user/aud...1ee65.mp4.html
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Last edited by audioarsonal; 05-15-2013 at 10:05 AM.
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Old 05-18-2013, 01:45 AM
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Stupid question but i thought caps were not as efficient as battery's?
either way those seem like some serious caps, years ago i was crazy proud of a 10 farad cap i had.
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Old 05-18-2013, 01:49 AM
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Stupid question but i thought caps were not as efficient as battery's?
either way those seem like some serious caps, years ago i was crazy proud of a 10 farad cap i had.
No, normal caps aren't so you're right there. The typical 1-15 farad cap won't do much to help out.

The caps in the vid are 2700 farads each. From all the testing I've seen so far, they do perform better than batts for quick bursts of power, like a burp for an spl contest, but typically aren't used for daily drivers due to the limited reserve of them.
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Old 05-18-2013, 01:51 AM
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on a bigger battery they pulll ALOT more.

Like on my skbt100 1 bank of 6 pulled over 400 amps through some 8 gauge lol.
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4 15s + Flat Wall + 10k = Loud

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Old 05-18-2013, 01:57 AM
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So basically caps for burps and batts for daily?
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Old 05-18-2013, 01:58 AM
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So basically caps for burps and batts for daily?
Generally yes.
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4 15s + Flat Wall + 10k = Loud

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Old 05-18-2013, 02:00 AM
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So your saying if you you have dead caps and hook them up to the charger; the caps will draw to much and possibly fry the charger.
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Old 05-18-2013, 02:02 AM
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So your saying if you you have dead caps and hook them up to the charger; the caps will draw to much and possibly fry the charger.
No. Chargers have built in protection for that.. The same reason they (most) won't fry if you touch the cables together with the unit on ( basically zero resistance).
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Old 05-18-2013, 02:46 AM
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Caps can be used for daily or competition.
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Old 05-18-2013, 03:04 AM
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shit spikes of 400a? Might want 2 runs of ofc zero lol.... what if we just hooked them up to the uhm car electrical?
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