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Back-UPS Pro 550 always battery loading? | Back-UPS & Surge Protectors

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Back-UPS Pro 550 always battery loading?

Discussion in Back-UPS & Surge Protectors started by Caraten , 4/17/2019 4:10 AM
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Posted in: General

Back-UPS Pro 550 always battery loading?

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  • rv112

    Since two weeks my UPS shows on display on 2-4 dots for battery capacity. PowerChuze shows that it‘s at loading all the time. 

    I also replaced the battery with a new one and did a selftest that passed. 

    What‘s wrong?

  • rv112

    My UPS seems broken so I bought a new one (Back-UPS Pro 550). This one has a strange coil whine / hum. Every 3-5 seconds it hums for about 1-2 seconds even if battery is full.

    I think it's time to change the manufactor. 

  • wpasquil


    Sorry for the inconvenience. If you feel the new UPS is not working properly you should contact local support. They will assist you and if needed provide a replacement. 

    Here is a link to APC.com where you will find contact information for local support.


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