Hello Delled The error is a general battery fault. Make sure the firmware is version 1.12 or later and reseat the battery. Then you will need to clear the error from the console of the UPS. If the error returns then the battery will likely need to be replaced. Thanks <ADMIN NOTE: Broken link has been removed from this post by Dell>
Yesterday one of our Dell UPS 2700W sounded an alarm and the error log reports it as Alarm 149.  According to the manual here is the description: "A faulted battery string hasbeen detected and as a result,the charger is disabled."  The recommended action is to "Contact your service representative."  I was wondering if anyone can shed any light on this error message.  What it exactly means and is there anything I can do short of actually calling Dell for help. I appreciate any help or suggestions.  For now the backlight on the front display is orange instead of blue and the there is a blinking battery icon with a line through it. Also, the UPS Management software from Dell shows that everything is functioning normally so I'm kind of confused. 
Dell UPS 2700W Service Battery warning