APC 1500VA upgrade to external battery - any issues?

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  • shiftline
    New Member
    • Dec 2015
    • 3
    • Canada
    #1

    APC 1500VA upgrade to external battery - any issues?

    Hi guys,

    I have an older APC 1500VA UPS like the one pictured below. right now it has the dual 7AH sealed led acid batteries.. and i'm using it as a backup on an aquarium.



    I Also happen to have a beast of a 147aH sealed led acid UPS battery (UPS12-540mr) laying around unused.. Could i wire the little UPS to the terminals to this giant battery?

    Now would the charge circuit have any issues going form 14ah to 147ah? or will just just take ages to charge? (which is okay).

    I dont foresee my self having a very high load off the UPS.. i more just want it to have a very long run time for some water pumps. I can wire some of them directly to the battery and the 24V ones through the UPS.

    Cheers!
    Deven
    Tags: None
    • goontron
      5000!
      • Dec 2011
      • 4108
      • US
      #2
      Re: APC 1500VA upgrade to external battery - any issues?

      it wont have too much trouble charging... It's the long runtime part. Lots of modern UPSes have a very limited runtime. They could cook if they run to long. If you want to do this, i recommend an older, all metal unit. They are less built down and have better cooling.
      Things I've fixed: anything from semis to crappy Chinese $2 radios, and now an IoT Dildo....

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      Excuse me while i do something dangerous


      You must have a sad, sad boring life if you hate on people harmlessly enjoying life with an animal costume.

      Sometimes you need to break shit to fix it.... Thats why my lawnmower doesn't have a deadman switch or engine brake anymore

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        Comment

        • shiftline
          New Member
          • Dec 2015
          • 3
          • Canada
          #3
          Re: APC 1500VA upgrade to external battery - any issues?

          Thanks for the tip.. Ill see if i can find one.. alternative maybe i can upgrade the internal heatsinks/fans

          Runtime would likely be long but the load shouldnt be too high

            Comment

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