C-rating is like horsepower for batteries. The more we have the better we feel, the more hair is growing on your chest, and the faster we go. These packs just arrived for some reviews we are working on and we keep looking at the huge C rating and can’t wait to feel the rush of power from them. We do think that since these packs are getting so powerful we might have to call it a “B-Rating” because they aren’t your average cells anymore!