384V100AH 38.4kwh FOR for  your 40kva 1 hour back up time  , and it will be used by the 100AH BATTERY CELL 
 each string composed by 48v 100ah eight pcs in series to be 384v dc each battery pack is 484*430*129 MM/43KG
including all the battery cabinets , battery connections , communications wires , the high voltage controlling module and the BMS  and the  battery cabinet 
the price battery cabinet size is 600*1100*1200, battery packs will be installed inside in front and rear