Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 280)

Chapter 12. Troubleshooting
268 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
0046 Battery voltage is high
Event Type
Warning
Cause
The battery pack voltage being monitored by the Battery Backup Unit has
risen above the warning threshold.
Action
The Battery Backup Unit is presently still able to backup the 3ware RAID
controller, but you should replace the battery pack if the warning continues.
0047 Battery voltage is too low
Event Type
Error
Cause
The battery pack voltage being monitored by the Battery Backup Unit is too
low to backup the 3ware RAID controller.
You may see this message during a battery capacity test. In this case, it is not a
sign of battery failure.
You may also see this message if the battery pack is plugged in while the
computer is on. This is not advised.
Action
Replace the battery pack if none of the above causes apply and the warning
continues.
0048 Battery voltage is too high
Event Type
Error
Cause
The battery pack voltage being monitored by the Battery Backup Unit is too
high to backup the 3ware RAID controller.