Submarine E-2 which exploded while drydock the Brooklyn
Navy Yard. Although the explosion was later attributed the
failure the crew open hatch and vent the battery
gases, the Navy subsequently demanded stringent testing of
batteries which effectively prevented the purchase any more
Edison batteries for submarines. In
January 1916, Edison cells were installed the U.5
military uses brought profits into the company, the most
promising application, submarines, proved disastrous.S.(10)
