AXXRPCM2

Hi

What is the shelf life of AXXRPCM2?

How to find out the date of manufacture of the battery AXXRPCM2?

i connect AXXRPCM2 to SRCSAS 18E, in logs:
Controller ID:  0   Battery Not Present

Сontroller ID:  0   BBU disabled; changing WB logical drives to WT, Forced WB VDs are not affected

thanks in advanced