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wiki: Backup power
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Pete Verdon
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Posts: 357
wiki: Backup power
wrote:
Oh, iron carbon batteries are he
http://www.wiki.diyfaq.org.uk/index....carbon_battery
Interesting, but curiously lacking in details of actually making the
thing. I assume one simply dips the carbon and steel electrodes in a pot
of salty water and obtains a voltage across them? How salty should the
water be?
Pete
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