[QUOTE=mfdarvesh;4414468]@Ishtiaq778 Bahi
Loadshedding in my area has increased now. It is going after every hour. So electricity is available only for one hour.
I have Mercury Radiant UPS which I have bought two years before, working good
recently purchased Phoenix UGS 175 battery
Any 12V ups system badly fails in 1 hours interval load shedding. You are running 3 fans as back up and draining 30A/H while your 12V ups hardly returns 10 to 15A in One .......thats y u r not getting enough back up time.
Let your ups to charge the battery full, use less fans 1 or 2 to compensate the load sheding scene.