The switch contains a battery that provides standby power in conditions where the switch does not have constant power from the facility, for example, when the switch is powered off or resetting.
-> show -d properties /SYS/MB/V_VBAT /SYS/MB/V_VBAT Properties: type = Voltage ipmi_name = MB/V_VBAT class = Threshold Sensor value = 3.047 Volts lower_noncritical_threshold = 2.548 Volts upper_nonrecov_threshold = N/A upper_critical_threshold = N/A upper_noncritical_threshold = N/A lower_noncritical_threshold = 2.548 Volts lower_critical_threshold = N/A lower_nonrecov_threshold = N/A alarm_status = cleared ->