No that this could happen to a KR , but I want to write about something that happened to a bank of batteries that we use at our water plant to start our high service pumps. When I flipped the switch on one of these pumps last Wednesday, there was an immediate loud explosion from the back room where the batteries are kept. Upon investigating I found a mist of atomized electrolyte in the air and battery parts in a 25 ft. radius of the bank. I will use a dry cell battery in my KR2 from now on, as far as I know these cannot explode if use properly, and need no ventilation. I had one in my Sonerai I for two years with no problems. I was the same one that they use in Jet skis.
Tim