Ray Jennings first of millions to replicate Dickens Mg-Cu-H2O battery — water-powered AA
On June 6, 2012 Massachusetts attorney, and New Energy Systems Trust vice president, Ray Jennings, received his Magnesium rods (5 for $15 from GalliumSource.com). It took him about 15 minutes to assemble this 1.5.-volt battery by fastening a metal strip to the end of the Mg rod with a hose clamp; then fitting a piece of foam around the rod, then winding a copper wire loosely around that and setting the assembly in a bottle of tap water (no electrolyte). Adding electrolyte, while increasing amperage, greatly diminishes the life of the Mg. without electrolyte, the battery can last essentially indefinitely, maybe sanding every 9 months to remove some build-up on the electrodes. The battery powers a wall clock. (Note, in the video, Ray misread his meter. The actual voltage is around 1.3 V). A kindergartener could build this and afford to buy the parts needed. For more info and plans, see our open source project page at http
