Tender For procurement of sealed maintenance free vrla battery set of 60 cells (stackable), in combination of 55+5 cells for smps based integrated power supply system, each cell of 2 volt/200 ah capacity, fully charged, conforming to rdso specification no. irs : s:93/96(a) with latest amendments, complete with connecting links and suitably numbered in stackable racks along with user manuals. vendor shall be born on rdso's approval list etc.