Battery backup problem

[Nazlib]

This morning my battery backup's red light went on. And I began to hear loud beeps.  I received messages from Fios telling me that my backup battery needed to be replaced.  Verizon support informed me how I could stop the beeping.  I followed the instructions but could not stop the beeping.  Support also informed me that the beeps would be one minute apart but my beeps were 15 minutes apart.  Any suggestions?

[Edg1]

Call Verizon and tell them you don't want to pay for a new battery. And to send out a tech to update the BBU and install a new Power Adapter. 

The Power Adapter has no battery and will not beep. This is Verizon equipment so there will be no charge for the visit.