Sorry to hit you with the brutal facts, but you caused this by charging at a rate far beyond what is appropriate for Lithium Polymer cells. The important thing for all that read this is that the warning that you receive with the batteries, chargers and almost every product that deal with lithium polymer are real! Thanks for your honesty about the steps that led up to this unfortunate event. Most of the time, guys just post a picture of their garage after the fire and........"they have no idea what happened. Must be them darned Lipos"
I'm glad no one was hurt and really hope others that see this will avoid overcharging!
Mike
www.CommonSenseRC.com