SRT2200 Erroneous 0x0119 Battery needs replacement

[john.bayly]

I have a Smart-UPS SRT 2200 which is reporting that Internal pack needs replacement. It's a bit strange as this was replaced in November 2021, along with the two in the EBM (which report as OK)

This is the error reported:

Serial Number : xxxxx
Device Serial Number : xxxxx
Date : 10/04/2024
Time : 13:36:34
Code : 0x0119

Critical - UPS: Battery needs replacement. Order replacement battery, APCRBC141, for the internal pack, cartridge 1.

It's reporting that the health is OK and the replacement date is in 2026, yet the pack needs replacement.

I've removed the pack and tested the voltage, thinking it may be low. But it is 80V, which seems a little high for a 72V nominal voltage.

I've tried, will try the following, but has anyone got a suggestion?

• Put UPS into bypass and removed pack (in order to test voltage), and reinstalled
• Restarted the Network Management Card
• UPS Self-Test - Passed
• TODO: Check individual cell voltages for any outliers

Many thanks.

[john.bayly · Accepted solution]

After an online chat to APC, which asked me to go through the steps I had done. I did the following:

1. I swapped out a pack from a good UPS
2. Update the month to now
3. Everything was good
4. Swapped out the "bad" pack and entered the original month (Nov 2021)
5. Everything is still good

When I had removed the pack the other day and tested the voltage, I had simply scrolled the month up and down a few times, but that obviously doesn't reset the alarm.

[Teken]

Manually initiate a battery calibration with at least 30% attached load.

What are the results of completing the battery calibration procedure?!? 🤔

Lastly, as you noted it makes sense to to validate each cell. In case there is a weak cell in the pack which can impact the entire battery cartridge.

Let me know the results. 👍

[john.bayly]

@Teken Thanks. The UPS is used in conjunction with an SRT72BP, so there are 3 packs in total.

I had already run a calibration test (in the blind hope that might do something) and the runtime was less than expected - ~23 min from 100% to 27% at 42% load (917W) - but not mind-scratchingly bad. Which could be down to:

• Batteries being 3 years old
• The UPS not utilising the internal pack (I suspect this is the case) as the expected run time with 3 new packs is 49min (49 * 2 / 3 = 33)
• The test stopped at 27%

I'm going to run another one with a similar load.

I also tested each cell in the pack and they were all above 13V, so it doesn't appear there was a weak cell.