A single charger. A whipped cream charger (also called whippits, whippets (from the brand name Whip-It), nossies, nangs, or chargers) is a steel cylinder or cartridge filled with nitrous oxide (N 2 O) that is used as a whipping agent in a whipped cream dispenser.ream must have a minimum fat content of 28% to produce whipped cream with a dispenser. To use a whipped cream dispenser, one starts by following a recipe — typically 1 cup of heavy cream, 2–3 tablespoons of sugar, and any flavorings / colorings as desired.