How can Charging a battery add virtually no Weight but lots of Energy Explain that Please

All matter is made of Black HEAVY particles called Muons and White EXTREMELY LIGHT particles called electron neutrinos. Together they are Dirac Neutrinos which are the tiniest particles ever detected. So how much does each particle weigh? This is how much a Tesla increases in weight when charged vs uncharged. Many top Physicists say there is NO WEIGHT GAIN when a battery is charged from dead. I say that is untrue but close. I do know that heat is energy and a hot item will weigh more than a cold is because heat is only the white electrons so almost no weight whatsoever but tiny amount. My model S weighs about 2 - 3 micrograms more when fully charged. Imagine that! 3 micrograms energy mass can move a car 400km.