bids are invited for custom bid for services - ---- - supply, installation, testing and commissioning of 12 v, 65 ah smf-vrla batteries for the existing fids ups system, including dismantling and removal of existing batteries, cleaning of battery rack, installation and connection of new batteries, inter-battery connectors, cables, lugs, terminal covers, nuts, bolts, washers and all required accessories.the item shall also include testing of individual battery voltage, complete battery-bank voltage, charging voltage and satisfactory operation of the existing ups system, along with buyback, complete in all respects as directed by the engineer-in-charge. (model no. exide powerssafe plus-ep 65-12 or equivalent) , supply, installation, testing and commissioning of 12 v, 42 ah smf-vrla batteries for the existing cctv ups system, including dismantling and removal of existing batteries, cleaning of battery rack, installation and connection of new batteries, inter-battery connectors, cables, lugs, terminal covers, nuts, bolts, washers and all required accessories.the item shall also include testing of individual battery voltage, complete battery-bank voltage, charging voltage and satisfactory operation of the existing ups system, along with buyback,complete in all respects as directed by the engineer-in-charge.(model no. amaron quanta-12al042 or equivalent)