Super capacitor thoughts.

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vb_master
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Post by vb_master » Thu Aug 17, 2006 7:51 am


vb_master
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Post by vb_master » Thu Aug 17, 2006 7:57 am

anotherperson wrote:By alternative battery, I meant USB device alternative battery :P I guess there's not much difference between this and that at all. I might go get a 2.3V 50F cap next week and look around for a 2 to 5V step up circuit. Have you got a link to something like that, vb_master? If not no need to search for me - I'll look.
Well the SuperCap battery could easily be modified for that.

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Indigno
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Post by Indigno » Thu Aug 17, 2006 7:59 am

Howcome you don't see these types of batteries more often? 20 seconds for 3 hours of charge??
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Post by vb_master » Thu Aug 17, 2006 8:02 am

Indigno wrote:Howcome you don't see these types of batteries more often? 20 seconds for 3 hours of charge??
It said that it will charge for 20 seconds and last for 3 hours, not the other way around.

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Ness
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Post by Ness » Thu Aug 17, 2006 8:03 am

Capable of reaching 9V, however, I'm guessing the issue lies in what electronic its used in. I'm sure if you rigged it to a PSOne LCD and an SNES, it'll last about 30seconds...

The article mentioned something about finding a way to raise the mAH so you can use it longer, but I just glanced over it quickly. If you can figure that part out, you are in business.
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timmeh87
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Post by timmeh87 » Thu Aug 17, 2006 8:56 am

probably.

i was reprimanded for discharging giant solarcar capacitors through bits of metal (thus melting said bits) because apparently the capacitors build up huge electrostatic forces inside (makes sense) and a rapid change in these forces can like rip it apart inside or something.

of course, these capacitors were like bigger than a water bottle.
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Post by vskid » Thu Aug 17, 2006 10:28 am

This page is about super high capacity capacitors that may replace rechargable batteries.
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timmeh87
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Post by timmeh87 » Thu Aug 17, 2006 11:46 am

yeah my friend who works at university with me is helping some prof make supercapaitors... i wish i had that job.
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Post by joevennix » Thu Aug 17, 2006 3:41 pm

Search google for a voltage doubler circuit. 4.6V should be enough to power usb
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