Weak Battery Alarm 40KVA Smart-UPS

[Anonymous user]

Hi,

We have a weak battery alarm on 40KVA UPS. How can you identify which battery is faulty out of the all the batteries installed?

Regards,E

[Anonymous user]

I have not worked on a 40KVA. but I have tested the UPS batteries 2KVA, 3KVA, 5KVA. I tested the batteries 12V/5Ah and 12V/7Ah one by one, and by block.

For your case you should remove all the blocks of the UPS battery and test their voltage. if there is a large difference between the measured voltages, the block with the smallest voltage should have faulty batteries, it will replace.

[Anonymous user · Accepted solution]

gives some characteristics of the battery modules that you are using.