The battery system is plugged into an AC power source. During charging
mode, the attached load to the battery system is operational. The
batteries charge. The cooling fan runs only when the unit is plugged
into an AC power source.

Running mode

The batteries have some level of charge and the battery system is not
plugged into an AC power source. During running mode, the attached
load to the battery system is operational. The batteries discharge. The
cooling fan is off. The load to the battery system is active.

Stand-by mode

The batteries have some level of charge, the battery system is not
plugged into an AC power source, and the load is either disconnected
or off. The cooling fan is off. The load is powered when the system is
either turned on or reconnected.

Off mode

The batteries have no charge and the battery system is not plugged
into an AC power source. During off mode, the attached load to the
battery system is not operational, whether connected or turned on.
The controller board is in sleep mode. The cooling fan is off. Plug the
battery system into an AC power source to leave off mode.

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