I have taken two 1.5 KV batteries from sukum. One battery was gone under warranty. I have raised complaints 4 months back still now it is not at rectified. Poor service I got it. Better to think before buy Sukam batteries & investors.
My advise to all the people out there looking for a dependable inverter, "Never buy from Su-kam, because they are a bunch of crooks with no morality and sense of responsibility"