My grandson works for the "U.L." =Underwriters Laboratory just south of Philadelphia in addition to being a Professional Firefighter. U.L. has just completed a series of tests and experiments with Lithium Batteries and has learned much, about what causes runaway reactions. But the extinguishment of runaway fires or actions to prevent exposed battery's from become involved is still a major problem. I heard about a fire chief in the Midwest who had a fire in a Lithium Battery Energy Storage Facility. Thew Chief had his firefighters pour bags of dry concrete over the batteries, and this worked to contain the fire. I told my grandson about this idea, and he presented this concept to his bosses a U.L., NO answer from any authorities on if this tactic is valid. I will keep you posted when I get more information about this major often deadly problem.
captain Bob Rainey FDNY Engine 26 retired
