The recent Tesla accident reveals the batteries as being a real hazard. Lithium batteries are finicky about mistreatment and overtemperature any accident that results in a short circuit or internal battery damage can be a disaster. It was reported that first responders had to use 30,000 gallons of water over four hours to put out the fire, as the battery kept reigniting. What is going to happen after a greater number of electric vehicles are on the road and become involved in accidents? Green may suddenly turn to charcoal.