40 Manufacture to the order and/or to the specifications of others of electric and hybrid drive train systems composed of internal combustion engines, generators, electric motors, power controllers, inverters, software and firmware; energy management systems composed of an electric controller, batteries, chargers, software and firmware; storage systems composed of electric converters, inverters, software and firmware; and components for use in land vehicles and in marine applications, namely electrical controllers, electric converters, battery chargers, inverters, and accompanying computer software for use in the operation and control of electric and hybrid vehicle drive train systems, energy management systems, energy storage systems