Question about APC Smart-UPS 1500VA Shipboard (SUA1500X93) UPS System

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APC Smart-UPS 1500VA

After replacing the batteries, all of the lights blink .the problem occured while the new batteries were charging.
any thoughts or suggestions?

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  • triniman Dec 24, 2007

    I have the same problem with a SmartUPS 1400 after replacing the batteries. I tried recycling the power on and off but that did not work. This is the 2nd time in 2 years I had to replace the batteries. The first time all went well. All the led's in the battery charge/voltage utility bar graph keeps flashing. Any suggestions will be greatfully appreciated.

    Please email me at or post answers here.

    Thanks very much.


  • sethi_jss
    sethi_jss Aug 06, 2012

    UPS needs calibration



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Your UPS must be calibrated properly to remove the flashing lights on the front panel

Posted on Mar 25, 2012

  • Jesrey Paco-in
    Jesrey Paco-in Mar 25, 2012

    But if there is no output voltage from your UPS you need to replace one of the relays from your UPS


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Yeppers...those APC units sometimes kick the monitoring software. sometimes you need to unhook the connection cables(like a reset) so that the firmware can 'unlock' which can cause that christmas tree effect on the panel lights.

Posted on Feb 06, 2008


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