Is BBU bad?

Exadata x4-2 db node BBU was failed,We found "Battery State: Unknown" after we have been replaced it.And it can not executive "-bbulearn" command. Is New parts bad parts?

[root@dm01db02 MegaCli]# ./MegaCli64 -AdpBbuCmd -a0

                                    

BBU status for Adapter: 0

BatteryType: iBBU08

Battery State: Unknown

  Battery backup charge time : 9 hours

BBU Capacity Info for Adapter: 0

  Relative State of Charge: 10 %

  Absolute State of charge: 8 %

  Remaining Capacity: 129 mAh

  Full Charge Capacity: 1066 mAh

  Run time to empty: Battery is not being charged. 

  Average time to empty: 8 Min.

  Estimated Time to full recharge: Battery is not being charged. 

  Cycle Count: 0

BBU Design Info for Adapter: 0