battery / capacitors

exxos responded in news:3f92dd4e$0$6621$ snipped-for-privacy@news.dial.pipex.com like this:

C = IT/V

So for 2000mAH, Vmin 1V, C = 2 x 60 x 60 / 0.5 = 14.4kF.

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Fred Bloggs.

In article , snipped-for-privacy@home.co.uk mentioned...

It's not the same. A battery's voltage stays relatively constant, whereas the capacitor continually discharges, to zero. But you'd need lotsa farads. See

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My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half). You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it:

Ah, I did it for a guess at 100ma for a hour and got 400F, in other words BFC!

Chrsi

In article , snipped-for-privacy@home.co.uk mentioned...

Maybe not so big, physically.

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My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half). You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it:

Why don't you get one of those 5volt 1 farad caps. They are about the size of 4 quarters stacked up. We used to use them to keep the old DRAM energized without batteries. They would last months and months. I think the last one I bought was from

in northern California... Good luck and take care, Ross

AA

words

wow, would be interesting to see what happens to the steel rule after shorting one of those out ;-)

chris