Replace Battery LED on APC 3000XL with Two Additional Battery Packs

[Anonymous user]

Hi, we have an APC 3000XL unit that has two additional battery packs attached to it.

The unit now has the replace battery LED illuminated.

Does this mean just the main batteries in the 3000XL itself need to be replaced, or do the batteries in the additional attached trays need to be replaced as well?

[Anonymous user]

If I maysuggestion, you leave thebatt. internalandbatt. externalremainedin use, thenyoucaliberationUPSruntime...

how muchload?

[Anonymous user]

How do perform the calibration? We actually have very little load connected to this UPS, only a couple rack switches.

[Anonymous user]

battlife. 2 years, if thebatt. already 2yearsshould definitelybe replaced.
herethe need forself-testandruntimecaliberationbatt. PowerChuteruntimeinexisting facilitiescaliberation

[BillP · Accepted solution]

Below are the steps that you can follow to perform the manual run time calibration.

1. Battery must be at 100% capacity when the Runtime Calibration is initiated/started.

2. The UPS must have at least a 30% load on it during the calibration.

3. The load cannot fluctuate more than +/- 5% during the calibration.

4. The battery must be discharged to at least 25% capacity (it is best to allow the UPS to shut off due to a discharged battery).

In addition to the above conditions, any UPS monitoring/shutdown software should be stopped from running in the background, and the serial cable should be detached from the UPS. This is necessary in order to prevent the software from shutting down the server/UPS due to an on-battery or low-battery condition.

Like what Rob has said earlier, if the replace battery LED is lit up then the batteries have failed the self-test and needs to be replaced already to prevent any untoward incident.