I have an APC UPS for which i replaced the battery few days back. The UPS shuts down the PC within a minute of going to battery. If manually i abort the shutdown (user alert on PC), my pc continues to run at least 45 minutes! I tried to calibrate the battery, but didnt help (Let the UPS drain down to zero on a resistive load which was 35% UPS capacity. And then recharged to full). Power chute software usually shows the estimated time, but shows nothing here now.
What is the problem? How do i fix this?
More aboutapc ups battery calibration issue
Old was CS3 - 12V (couldnt not see the mAh, stickers on it, dosent come off.) New is Exide - 12V, 7mAh
On battery with 100W load i get at least 45 mins and with 300W resistive load i got 17 mins.
If its all good then why does the UPS shut down my PC withing one minute of going to battery?