SMART UPS 3000 problem

[Anonymous user]

Hello

Here is my problem with UPS. I have model SUA3000RMI2U with batteries replaced in Jun 2014. While trying to run a self-test, it failed:UPS: At least one faulty battery exists.

UPS alarm test is passed

I removed the batteries, checked UPS output voltage (55.08VDC) as well as mechanical connection and all looks fine. And since batteries are relatively new, I am not sure if they are problem or the problem is with the UPS itself. When running self test, the bad battery red LED is ON

I have another model of this UPS and it passes self-test. I have also redundancy switch installed.

What should I do next? Replace batteries again? Please advise.

Slawomir.

[BillP]

Hi Slawomir,

Since you have another model of the UPS, I would swap that battery temporarily into this UPS and run a manual self test. This way you tell whether the issue is with the battery or the UPS. 

Other thoughts:

- Did you purchase a genuine APC battery or purchase third party ones? If it's a genuine APC battery, there should be a white sticker with a model and serial number on it which will be helpful determining the age of the battery. 

- Do you have frequent power outages or an unusual environment (ie. overly hot, etc.)?

- How long did the batteries last before you swapped them in June 2014? (knowing the UPS serial number would be helpful as well)

- Does this failed self test message occur when the UPS runs it automatically or when you run it manually?

Let me know what you find out.

- Tommy

[Anonymous user · Accepted solution]

Hello

Thanks for the reply. Here is some more information

UPS units were purchased in the US in 2007 or early 2008. Model number is SUA 3000RMI2U, serial JS0713015506

I called APC Japan and they refused to sell me new batteries as UPS with 230 VAC output are not covered by them. So I had to buy batteries from a third party

We have scheduled power S/D once a year for 8 hours. Other than that, no power S/Ds, both scheduled and unscheduled. UPS is stored in MCC room with temp around 25-27 deg C

We kept the original batteries till May 2014 (so they were 6 years old) and then replaced. All tests are run in manual mode so failure was found during manual test.

One question. Assuming I buy fresh set of batteries, can I hot swap them with current unit without powering it down? Or I should switch the UPS off, remove the old ones, install the new ones and power it back on?

Thanks

Slawomir Stys