Earth Battery How To DIY, page-5

  1. 3,017 Posts.
    All the electricity that was used to electroplate the bolts and electrowin the copper, and they recover 1% back??
    Woo Hoo
    1mA enough to barely light an LED
    Game changer

    Not
 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.