The Ark crystal is a battery that produces voltage as a result of vibrations created by a perfectly cut tetrahedron resonating with the schumann frequency produced by the planet. The Schumann field is constant, for as long as the battery is used on/within Earth, it will produce 8.75 volts forever.

As this video and logic dictates, production of this device has been a dangerous venture and will continue to need to be monitored for assasination/suppression. The youtuber has done good work, though he needs to understand the idea behind getting the technology out there irrespective of what it is being "sold as"....