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

Step 6 Done!

Solder the 4 cell in series to the led, respecting polarity according to the scheme.

Put 1 drop of lemon juice on each cell.

And voila', enjoy one hour of free light ;)

Here are some considerations about this battery design:
-wire the copper strands very close together for better results;
-if you enclose the whole battery to reduce evaporation, the led will light for longer time.

Next I am showing you my tiny reasearch on Volta's batteries.
We will see 10 different designs, each one with its pro and cons.

PS: if you liked this instructable, please vote it for the Epilog Challenge ;)

Comments

[harman0]

cool =)