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BR1500MS is not working on AC power | General Questions & Suggestions

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BR1500MS is not working on AC power

Discussion in General Questions & Suggestions started by Ivo , 7/23/2019 7:30 PM
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BR1500MS is not working on AC power

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  • IchoBMW

    Hello, i am reaching out of desperation!

    i got BR1500MS and i moved to Europe...i bought it new and used it less than a month in USA and it was working great!

    when i shipped the UPS, i followed the procedure and disconnected the battery! it took 2 months to get to the final destination!

    When i plugged it in ( i got voltage converter 3000W 220 to 110) it turned on, but it works only in battery mode, wont switch to AC...

    so basically its draining the battery..

    if i turn it OFF and plug it IN..its getting charged (after few hours battery is full)

    i tried every single trick found on the web, but no luck!

    i got 2 more UPS units and they are working fine!


    please someone?

  • TomC

    Hi Ivo,

    Can you please try to perform a braindead on the UPS. 

    To do this, follow the below procedure;

    1: Disconnect any attached load.

    2: Unplug the UPS from the wall socket.

    3: Disconnect the UPS' internal battery.

    4: Push and hold the ""On"" button on the UPS for 5 seconds

    5: Reconnect internal battery.

    6: Plug UPS in to known good power source.

    7: Turn UPS on.



  • IchoBMW

    i have done this before, i did it again...

    when i did the reset, i connected it to power sourche and it turned on...the battery flashed for few seconds and it stayed solid battery icon...


    i turned it off and i know its charging now!



  • wpasquil
    This discussion is marked as answered


    The UPS is designed to work with 

    Nominal Input Voltage
    Input frequency
    60 Hz +/- 3 Hz
    Not only do you need to changed the voltage in you must also change the frequency or the UPS will run on battery. 
  • IchoBMW

    yeah, i guess i tried everything else but this...and i think this will be it!

    i got 2 more units and APC smx1500 and Eaton...and they work great...i guess the are not so sensitive about the frequency as the BR1500


    Thanks a lot for the reply, i think that solves the problem!




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