supply installation testing and commissioning of plante lead acid battery bank 220 v 535 ah at rammam hydel project stage ii wbsedcl , supply of high discharge performance (hdp) battery cells in transparent san container having capacity of 2v, confirming to is 1652:1991, constituting of plante positive plates, pasted negative plates, lids, vents, plugs, separators, bolts & nuts, cell insulators, intercell connectors, sulphuric acid, battery stand etc., whatever required to install a 220 v, 535 ah, plante type lead acid stationary battery bank along with a set of accessories required for maintenance of the said battery bank as mentioned in chapter 4 (technical specification and other related matters) in the niet document , installation, filling of electrolyte, interconnection of each cell, initial charging, testing and commissioning of the 220 v, 535 ah, battery bank to the full satisfaction of the engineer-in-charge after handing over of site for the said purpose