Are my ups and battery working properly?
My ups is taking unusually long to charge the battery than before. I am worried if any of these two (ups and battery) is/are not working properly. For example, I kept one fluorescent light (40W) and fan (75W) on battery supply for 15 min and then started charging the battery (with AC input voltage~200V). It took 1.5 hours for the battery to compensate for the discharge. I find it unusually long. The battery is of 600VA capacity. CAn anybody please comment on this?
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You have tested at 115 VA. What happens when you put a 400 VA load on your UPS with the battery fully charged, then disconnect the input power to the UPS? Your battery is likely deteriorated if you can’t get 400 VA from your UPS. I said 400 VA, as a new battery may not be able to provide 600 VA = manufacturers are often over optimistic.
If your UPS is designed for 220 volts to 240 volts ac input, the charging circuit may be really slow at 200 volts ac input, but there are several other possibilities. The battery may be damaged from an excessive discharge. I have several retired batteries that charge fine from 12.5 volts to 13 volts, but won’t reach the design 13.6 volts no matter how many amp hours, it feed them = They are no longer 13.6 volt batteries, but have become 13 volt batteries with reduced capacity.
You can connect a transformer rated 6 volts at 3 amps or a bit more, as an auto transformer to increase your ac input voltage to the UPS by about 6 volts = your battery will charge faster unless something else is wrong, besides low power line voltage. Neil
I am also having the same problem. I have a APC 650 ups. Not only it takes long to charge but also discharges soon. The problem arises if you discharge the battery completely once.
Go for a interactive ups rather than for a battery change.
All depends on how old is the battery .
As the time lapses it takes larger and larger time to recharge.
your question is not clear
are you talking about UPS or IPS(inverter)?
what capacity battery is it in AH?
normally you only run the computer to safely shut it down in mains power failure with a UPS and not use it to run fans and lights because it is not designed to do so
A UPS has a 12V 7 AH battery installed