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Video: How do I troubleshoot the Replace Battery LED on a Smart-UPS?


The Replace Battery LED is lit on my Smart-UPS.

Product Line:

Smart-UPS, Smart-UPS Online


All models, All Serial Numbers


The Replace Battery LED is designed to illuminate when the battery needs to be replaced.


The following steps will allow you to troubleshoot your Replace Battery Indicator:

Note: The normal load should be connected while performing these steps.

1. Allow the battery to charge to 100%, as indicated in PowerChute, Network Management Card, or the LCD Screen on the UPS (if so equipped).  For best results, charge the unit for a minimum of 8 hours for a standard UPS or 24 hours for a UPS with external batteries connected.  Smart-UPS products will charge batteries whether the unit is on or off as long as it is connected to a good line source.

2. Initiate a self-test:
If your UPS has an LCD screen go to the "Test & Diags" menu, then select "UPS Self Test"
If your UPS does not have an LCD display, press and hold the "I/Test" button until the LED's begin to flash

3. If the Replace Battery LED remains lit, the battery needs to be replaced. Batteries typically last 3-5 years, however high temperatures (>25°C / 77°F) or frequent power events will reduce the life span and can make the battery require replacement sooner. Battery warranty on all Smart-UPS products is 2 years from the date of purchase against defects when used under normal conditions.

If you are in North America and need additional assistance or a possible warranty replacement, please contact APC Customer Support. Please have access to the unit when contacting APC as additional troubleshooting may be required.

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