I'm comparing batteries for use in UPSes and during my tests I was consulting the datasheets of 2 manufacturers. The datasheet from SunLight is crystal clear but CSB's datasheet is using terminology that I haven't seen anywhere else and googling didn't help. Here's the table from the later regarding discharge time:

Does anybody understand anything from this table? What is F.V/Time? What are the numbers of the table correspond to?