Hello guys this is sanghy from Nagpur today I am going to share my views on V Guard VG 400 voltage sensing inverter first of all I want to tell you it is not at all a good product for an heavy duty works I got it near about 6 months ago but just after use of 2 to 3 months I started to face number of problems in just one product such as its charging time increases to get charged fully and also its battery backup reduces badly that leads to degradation of its overall performance talking about his durability so it is not also that much reliable its user friendliness is also not up to the mark show buying this inverter can be your wrong decision suggest I want to suggest you that spend some more and go with the branded product which will satisfy you with performance and your cost thank you