bids are invited for supply, installation and commissioning of 250v, 800ah battery bank including spares with buy back - supply, installation and commissioning of 250v, 800 ah lead acid battery bank including inter cell connectors, inter row connector, nut bolts and sulphuric acid along with spares and buyback of existing batteries after deinstallation as per the technical specification and complete details refer table - a attached under atc. , new battery : supply of 250v, 800 ah lead acid battery bank including inter cell connectors, inter row connector, nut bolts and sulphuric acid , spares: supply of seismic qualified stands for accommodating all 120 cells mentioned in item no.-1 and in existing in battery bank room , deinstallation and installation and commisioning of new battery bank: erection, installation of battery bank along with stand and commissioning of battery bank , supply of spares required for battery bank maintenance after installation and commissioning, i.e. 10 nos. of dry cells , buyback of existing /deinstallated battery bank : buy back of 200ah 250v dc 116 cells plante type lead acid storage type battery bank including connectors. total quantity : 1