Ups Backup Problem

[Vivek.28]

Hi,
I have a 600va ups, which I brought 'bout 3 yrs ago. Earlier it used to give a backup time of 15-20 minutes. but now it has sopped giving me power backup. Everytime the power goes, my computer shuts down. My computer has a 15"monitor 2.1 sperker sys and a cpu with 500w smps.
is there any way, i could get it repaired, or will i hv 2 buy a new one.
please help me, i'm irritated.

[ravi_9793]

Time to change battery of UPS.
Change your UPS battery..it will cost Rs. 600/- (okaya)