procurement of battery bank and battery charger procurement of battery bank and battery charger , design, engineering, manufacturing, insurance, testing at ex-works, transportation, loading, unloading, storage, delievery at site & supply, installation, testing, commissioning of 110 v dc, 240 ah capacity sealed and maintenance free ( smf ) vrla battery bank comprising of 60 ( sixty ) nos, 2.2 volt each ( out of 60 nos cells, 05 ( five ) nos being spare ) complete with all accessories conforming to relevent iss as per latest amendment details in the technical specification section of the document. , supply & erection , design, engineering, manufacturing, insurance, testing at ex-works, transportation, loading, unloading, storage, delievery at site & supply, installation, testing, commissioning of 415v ac ( plus minus 10% ) nominal input voltage , 50 hz ( plus minus 5% ) , 110v dc output with adjustable range, 40 amp thyristor controlled float cum boast charger ( with less than 2% rms ripple content, without battery connected ) lessthan 60 db noise lavel , constant voltage processed battery charger comptitable for foresaid vlra battery bank conforming to relevent iss and latest amendment complete with standard protection as per is-54 to 20 as per is-2147, build in dcdb, standard indication and controls including switches, temperature range 50 degree centrigrade and painted by ral 7032 etc as required , supply & erection , supply, installation, testing, commissioning i / c transportation, loading, unloading etc. as required of battery bank suitable for 30 v dc, 240 ah vrla battery bank comprising of 15 nos, 2.2 volt each cell type 15 upst 240 complete with all accessories conforming to relevent iss as per latest amendment detailed in the technical specification section of the document. , supply & erection