Question about CyberPower 725SL UPS System

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Power is out

The back side of this 725 SL works fine. Front side (battery) Trips and clicks in and out after I plug it in (no load). Is the battery in it bad or is the aotumatic breaker shot? Can I fix it or do I just buy a new one? Money is very tight, so if I can fix this, I will...Thanks, Tom

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  • walkertd1Tom Feb 04, 2008

    It's a couple of years old. Never turned off. Are these batteries replaceable by me?

  • walkertd1Tom Feb 04, 2008

    I still need answers. Can't afford to replace it if I can fix it.

  • walkertd1Tom Feb 04, 2008

    If it's definately the battery/batteries then I'll take it apart. Would it click on and off if it is the battery? Could the breaker be bad?

  • walkertd1Tom Feb 05, 2008

    So it is definately the batteries?

  • Patrick Michaels
    Patrick Michaels May 11, 2010

    how long you had this one? Seems that if it's been in service a while, you may be suffering from effects of dry batteries(yes, even the Gel batteries 'dry' out, if they are not exercised every month, with a full discharge/recharge cycle).


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Sometimes you can buy the whole unit on a good sale for less than the price of the battery/ batteries.

Posted on Feb 05, 2008

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Tom, usually those can be replaced by the End User. It's rare that they'd be sealed inside, but that does happen at times. The big issue is finding replacement batteries of same type/size fit, and you'd need to do that online.

Posted on Feb 04, 2008

  • Patrick Michaels
    Patrick Michaels Feb 06, 2008

    actually, until you can run it without batteries, you can't tell. That's the problem with lower end UPS units. They are for all intents and purposes sealed by mfg, especially the ones from China. Lotsofjunk makes a good point here..


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