4 carbon fiber alufoil cells in series running LED

http://www.overunity.com/13282/carbonfiber-alufoil-selfmade-diy-battery-with-naco3-or-ashwater-electrolyte

Hi,
this is a test with 4 carbon fiber alufoil cells in series running the LED chip.

Unfortunately the inner resistance of these cells is tsill too high, so the light output in this mode is not yet too good, but okay for reading a book.

I will now work on a good Joule Thief circuit and trying to still decrease the inner resistance of these cells, so that we get more light out of them.

Regards, Stefan.

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