Dave, I am saddened by your experience and quite glad that it was not worse. I use an old cast iron dutch oven for charging. After reading the entire thread, I had second thoughts about all of the Lipos in my shop. Some are dead Indians and others are new. Putting them all outside would only expose them to temperature extremes, so I rounded them up and put them in the fireplace. Wife won't let me light a fire in it, so my batteries have a new home that is at room temperature year round. If they do cook off, the glass fire screen and flue will keep smoke in the chimney, where it belongs. Best use yet I have found for that fireplace.