Question about Opti -UPS PowerES 650 UPS System

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UPS An OPTI ups 550c indicates fault battery then cuts off power

Posted by vondougie on

  • vondougie Apr 11, 2008

    The UPS gave this problem from tests with new batterriesand indicates bad battery

  • vondougie Apr 14, 2008

    can i have a technical manual so that i can use it to track where the sensing fault could be arising from.I tried to download but i am failing



1 Answer


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All UPS uses some sort of battery to power the unit in the event of a power outage. Like car batteries they also have a life span which can be a couple of months to a year or so. If the UPS has been in service for some time, perhaps it simply needs a replacement battery. On the other hand, if the unit is fairly new and carries warranty, it may be to your advantage to consult your dealer and claim for a replacement.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Apr 10, 2008

  • Anonymous Apr 11, 2008

    Should you at the onset have indicated that this fault exists on either new or old batteries, then a more appropriate initial response could have been given such as a check of the circuitry that senses the battery condition which could either be a simple zener/SCR combo. My solution, that you rated as inappropriate, is only reflective of how the question/problem was posted.

    I wish you luck with your concern.



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