Bigger one for comparisonusing also more zinc and bigger copper layer without memebranehttp://algo.mur.at/projects/powerflowerbells/media/earth_battery_2/earth_battery_big_pot.jpg/viewhttp://algo.mur.at/projects/powerflowerbells/media/earth_battery_2/earth_battery_big_pot.jpg/@@download/image/earth_battery_big_pot.jpg
Bigger one for comparison
using also more zinc and bigger copper layer without memebrane
