You are facing the same problem as that of mine. After replacing my PSU even I am unable to get any back up. Then I got to know that its the UPS problem not battery. Actually the battery is working fine but it doesnt provide Sine Wave output wave form which most of these branded PSUs need.
I checked with an Intex 600VA UPS with Modified Sine Wave output, and it gave good backup.
So, I hope you need to get a new UPS with Sine Wave or modified Sine Wave output.
now thats another shock after upgrading my old pc....what was ur problem?....my ups battery is 2 yrs old and was non used from 1 yr also...
any way to check that its ups problem?
any way to check that its ups problem?