Alternator. The alternator with rectifier shall have an operational rating capable of supplying sufficient electrical power to maintain a fully charged storage battery with all electrical equipment, except the horn, hydraulic lift, and engine starting motor, operating simultaneously while the vehicle is running normally. Battery. The battery shall: Be of sufficient capacity to supply all electrical requirements; and Have a minimum cold cranking capacity rating of 650 amperes measured at 0°F. If equipped with a hydraulic lift, the manufacturer shall equip the vehicle with an appropriate heavy duty battery and alternator.