Using since Jan, 2017. It is working fine against power cut and voltage drops. Using with my gaming computer at 100% full load (powering 600 Watt CPU with 6 fans + 40 inch TV/monitor + Speakers + USB keyboard/mouse/headphone ) for 7 mins [Power backup time is fine for me, as I could not find UPS for such load at this price [Rs. 4500] :) ] Update: May 1,2020, UPS stopped giving backup for my PC. Looks like battery replacement needed