(under the class definition) Subject matter in which the armature or primary circuit of an electric motor is supplied by electric energy from one or more primary or secondary electric batteries which constitute the only source of supply for the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
440+, for motor systems where there are plural sources of electric energy for the armature or primary circuit which include nonbattery sources.
SEE OR SEARCH CLASS
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclass for charging or discharging a battery.