The Tiny Lemon Battery, and other designs for zero cost electricity and led light without batteries

Step 18 Final considerations

Here you have seen many different designs for making a battery out of ordinary materials.

Some designs are at the moment explained better than others, I will update them soon.

All of them are made by me, I have done many searches but it seems that the classic zinc-and-copper-and-some-lemons is the only design to show and explain how Volta's batteries can be done.

And if you liked this instructable, please vote it and spread the word ;)

It is my entry for the Epilog Zing Laser Contest and I can only dream how a laser cutter could improve my research ;)