Description: Loads that are energized for the duration of the duty cycle. Are normally supplied by the charger. Can have a big effect on battery capacity.
Energized for only a portion of the duty cycle. Can be turned on or off automatically or by operator action. Momentary Loads:- Very short in duration, can be the fraction of a second: Lead Acid - IEEE 485-Even though the load may last for only a few cycles, you must treat it as lasting one full minute.
Nickel Cadmium - IEEE 1115-Even though the load may last for only a few cycles, you must treat it as lasting one full second. The examples-switchgear operation, Engine starting,Field flashing.