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failed battery backup (UPS)

Discussion in 'General Electronics' started by Marco Scoffier, May 12, 2004.

  1. I have several battery backups (UPS for computers) that don't hold a
    charge at all anymore.

    Any pointers as to what is failing and why?
    What should I check and how?
    Can I fix them?

    thanks,
     
  2. Julie

    Julie Guest

    How old are the UPSs (or batteries in the UPS)?

    Typically, expect 3 yrs. of life for a battery.


    If your UPS supports it, replace the battery. If not, buy a new UPS.
     
  3. Thanks for the reply Julie,

    I think you are right.
    All these are old perhaps older than 3 yrs which seems like a
    very short lifespan to me.

    Since posting I found this page:
    http://repairfaq.ece.drexel.edu/sam/aapsfaq.htm#adpsuni
     
  4. Julie

    Julie Guest

    If you are relying on a UPS for critical work, test monthly, replace battery
    every 3 years.

    If you are a casual home user that has a UPS as a nice-to-have, replace every 5
    years or when it fails. Note that at the time of failure, you may lose data
    and/or cause other damage.
     
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