1. A system for supplying electrical energy to a partial or a total electrified drivetrain of a vehicle, the system comprising: an energy storage system having an energy storage system output, the energy storage system output having voltage in excess of a operating voltage of the electrified drivetrain; and a first converter having an input coupled to the energy storage system output and a first converter output, the first converter output being at the operating voltage of the electrified drivetrain.