I was buy this Frontech Electra 725 inverter in 2016 .This inverter is not so good and it is useless. The durability of this product is very low and its price is high .its charging life in a day is very low and when this is new work very well but after some month it create problems so I want to say u that donot ever buy Frontech Electra725 according to my experience.thank u friends