My microtek inverter is 6month old and it is running well their is no manfunctiong in it. something only their fuse get damage due to voltage fluctuations but it is good than anyother inverters.
Right now I am using this inverter to charge my 2 battery and it take upto 2 to 3 hours to full charge my whole battery and also it increase my battery backup. It can run 4 fans and 3 to 4 cfl for 2 days in full charge I am very happy with this product.