Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 286)

Chapter 12. Troubleshooting
274 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
0057 Battery charging fault
Event Type
Error
Cause
The Battery Backup Unit has detected a battery fault during a charge cycle.
The Battery Backup Unit is not ready and is unable to backup the 3ware
RAID controller.
Action
Replace the battery pack.
See Also
See the Install Guide for your controller
0058 Battery capacity is below warning level
Event Type
Information
Cause
The measured capacity of the battery is below the warning level. The Battery
Backup Unit is presently still able to backup the 3ware RAID controller, but it
is weakening.
Action
Replace the battery pack if the warnings persist.
See Also
See the Install Guide for your controller.