Smart-UPS 5000 (SUA5000RMT5U) 5 Green leds still blinking after Battery Replacement

[Timmm]

Hello,

I've just replaced the 4 Batteries on my Smart-UPS 5000 (SUA5000RMT5U) yesterday.

Today, after 18 hours of charging, the 5 green leds are still blinking.

I did a Self-Test this morning and it passed but I still have a Critical Alarm: Discharged Battery
I also have this message in the logs: UPS: The battery power is too low to support the load; if power fails, the UPS will be shut down immediately.

But, the UPS Status is:
Load in Watts: 26%
Battery Capacity: 100%
Runtime Remaining: 3min

My questions are:
5 Green blinking leds means that UPS Batteries are not fully charged ?
If so, should I have to wait longer for Batteries to be fully charged ?
If Batteries are not fully charged, why Battery Capacity shows 100% ?
Should I have something else to do after Batteries Replacement ?

Thanks in advance for your help
Tim

Here are the full logs since yesterday

20.02.2025 09:32:48 UPS: Passed a self-test.
20.02.2025 09:32:42 UPS: A low battery condition no longer exists.
20.02.2025 09:32:42 UPS: The battery power is too low to support the load; if power fails, the UPS will be shut down immediately.
20.02.2025 09:32:32 UPS: The battery power is too low to continue to support the load; the UPS will shut down if input power does not return to normal soon.
20.02.2025 09:32:32 UPS: A discharged battery condition no longer exists.
20.02.2025 09:32:32 UPS: Started a self-test.
20.02.2025 09:32:32 UPS: A faulty battery no longer exists.
19.02.2025 17:14:12 UPS: The battery is now installed.
19.02.2025 17:13:32 UPS: The battery is not installed properly.
19.02.2025 17:12:49 UPS: The battery is now installed.
19.02.2025 17:08:44 UPS: The battery is not installed properly.
19.02.2025 11:57:56 UPS: Self-Test Failed
19.02.2025 11:57:42 UPS: At least one faulty battery exists.
12.02.2025 20:24:08 UPS: The battery power is too low to support the load; if power fails, the UPS will be shut down immediately.
12.02.2025 20:23:52 UPS: The output power is now turned on.
12.02.2025 18:47:30 UPS: The output power is turned off.The output power is turned off due to a low battery.
12.02.2025 18:47:29 UPS: Restored the local network management interface-to-UPS communication.
12.02.2025 18:47:15 System: Network service started. System IP is x.x.x.x from manually configured settings.
12.02.2025 18:46:59 System: Warmstart.
12.02.2025 18:35:26 UPS: The output power is turned off.
12.02.2025 18:35:26 UPS: A discharged battery condition no longer exists.

[Teken]

You’ll need to wait for the battery cartridge to fully charge for 72 hours. Once the battery is 100% SOC. Verify the same with a multimeter and report back the surface voltage.

You must remove and let sit outside of the unit and record the battery voltage at the time of removal and 24-72 hours later.

Report the measurements here.

Afterwards reinstall the battery cartridge and update the battery installation date. Follow up with manually initiating a Self Test.

Once complete let the battery cartridge return to 100% SOC (State of Charge). Finalize by manually initiating a Battery Calibration with at least 30% attached load.

Let the system complete this procedure and recharge back up. The battery indicator should be more accurate and in time will display 100% charge. 

The load LED’s should also stop flashing after this procedure has been completed.

NOTE: If the above steps do not resolve the issue you may try the Brain Dead procedure as out lined here:

https://www.apc.com/us/en/faqs/FA156611/

Questions Ask . . . 👍

[Timmm]

Hello,

Thank you for the clear procedure.

I come back to you when it's done.

[Timmm · Accepted solution]

OK. It finally works.

I did a Runtime Calibration that I stopped after 5 min.

Then the Battery Capacity change to 0%

Now it's charging. The Battery Capacity is at 50% after 2 hours.

I think you have to do a Battery Calibration after changing them.

Otherwise the UPS is not aware that Batteries has been changed and it is still calibrated on old low Batteries Voltage. So it said that it is at 100% and was not charging them.

The Battery Calibration has reset this value and now the UPS is charging the Batteries.

Thanks for your help

[Timmm]

OK. It finally works.

I did a Runtime Calibration.

Then the Battery Capacity change to 0%

Now it's charging. The Battery Capacity is at 50% after 2 hours.

I think you have to do a Battery Calibration after changing them.

Otherwise the UPS is not aware that Batteries has been changed and it is still calibrated on old low Batteries Voltage. So it said that it is at 100% and was not charging them.

The Battery Calibration has reset this value and now the UPS is charging the Batteries.

Thanks for your help