For those eager to pounce on this without reading the article, Important disclaimer: it was the 12V battery (the kind you have in an average CRV or whatever) an

For those eager to pounce on this without reading the article, Important disclaimer: it was the 12V battery (the kind you have in an average CRV or whatever) and for some reason they were charging it indoors - no mention of the why or how it was being charged like that.