Okay then, where the h@ck is burning a nuclear reaaction in that link?
I don't understand your question. The link provides the statement by a reputable scientist that chemical reactions obey E=MC2 just as nuclear reactions. In both cases, mass is created into energy. When you burn a gallon of gasoline with oxygen, the total mass after the combustion is less than before the combustion. Same with batteries. The energy derived from batteries was originally mass.