Hey C G I was very concerned about charging Li Po's inside until I made myself what I think is a fire proof charging box. I had a Skill saw box about 10"x 10"x 12" with a hinged lockable lid. I never really use it anymore but even if I do need to it can still be used for the saw. Drilled a hole in one side to put wires from charger thru and walla great. I feel very safe now. Been lucky so far anyhow never had one blow but if it does where can it go?