• One slight problem is that if you pull too much power it will kill the trees... aluminum and electrolytes in trees and such.Kingman-ArtUser ID: 516046 United States11/30/2009 08:43 PMReport Abusive PostReport Copyright ViolationRe: Earth Battery HACKEDAn Earth battery is a pair of electrodes made of two dissimilar metals, such as iron and copper, which are buried in the soil or immersed in the sea.