Microtek ups is no a bad ups but some think is bad on this ups.firstly this upss battery backup is too good. Though you use lcd/led monitor than you got 25 to 40 minites backup and though you use CRT monitor than you get upto 18 minit backup. But cerkit bord on this ups is no good. Component no long lasting. Though microtek ups show use time any problame then u cannot solve problame. Common problame on this ups is system unexpected restart.thank you