In the output, the /SYS/MB/BAT status should be OK, as in the following example.
-> show /SYS/MB/BAT Targets: Properties: type = Battery ipmi_name = MB/BAT class = Threshold Sensor value = 3.140 Volts upper_nonrecov_threshold = N/A upper_critical_threshold = N/A upper_noncritical_threshold = N/A lower_noncritical_threshold = 2.704 Volts lower_critical_threshold = N/A lower_nonrecov_threshold = N/A alarm_status = cleared Commands: cd show