Re: what is an alternative for zinc electrode

This is a very common problem; since it stems from one of my answers I'd
better respond.

A galvanized nail is coated with zinc, and will work just fine as a zinc
electrode; or you may be able to find zinc at a building supply store (is
there one near you?)

The major problem people have with these batteries is trying to light something
that requires more current and voltage than a "fruit battery" can supply. Try
linking several "fruit batteries" together, zinc-to-copper, and see how many
it takes to do what you want them to do.

This approach is used in the "real" world: when you need more voltage than a
single battery can supply, several batteries are linked in series, plus-to-
minus.

                                              Dan Berger
                                              MadSci Admin