🚀 go-pugleaf

In article <1541@kitty.UUCP>, larry@kitty.UUCP (Larry Lippman) writes:
> In article <4@chasefrs.UUCP>, saul@chasefrs.UUCP (Saul Goldfisher) writes:
> > I am trying to build a homemade battery for my daughter's science project
> > using multiple lemons with copper and aluminum plates.  After connecting
> > 12 lemons I can get 2.2 volts but not enough amperage to light a 1.2v
> > 2.2 mA bulb.  Any suggestions on how to improve the amperage output?
> 
> 	Use copper with zinc, and forget the aluminum.  I realize that
> finding pure zinc in the household environment may be difficult, so try
> using a piece of galvanized sheetmetal.

A possible household source of zinc are pennies.  The modern ones are zinc
plated with a copper alloy.  Try scraping or sanding off the copper plating.
I haven't tried this myself, but it should work.  Good luck.
BTW, pure zinc can be obtained at any boating supply store.  Zinc slugs are
used as annodes to help prevent corrosion.

Also, iron may work in place of the zinc.  Try a nail.