In the December 2004 winning tip "Expiration of disk controller card batteries," Eldon Dobring described the way...
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to check expiration of disk controller batteries. In version 5.3 there is best method to do this.
Enter SST (strsst),
1 - start a service tool
7 - hardware service manager
9 - Work with resources containing cache battery packs. You should see disk controllers and some options, for example 5=Display battery information. This way provides you with the same information as in the STRSST...1,4,1,12 and 14 option.