[ale] OT: question about replacing batteries in a APC UPS

[Christopher Bergeron]

Before blasting APC, was your power source cleanly grounded; or did it 
have an open loop?

I'd recommend testing your outlets with a cheap home depot tester before 
installing a UPS.  A UPS will only be as reliable as the power source 
beneath it.

-CB


Mike Harrison wrote:

>>worse. The unit started beeping nonstop and would shut itself off and
>>then wait for a minute or so and turn itself back on only to start 
>>beeping again, and the unit doesn't keep running if the power is pulled 
>>    
>>
>
>I could have described it as an APC UPS from this description alone. 
>Trash it. Buy a cheap Tripp-Lite or non-name brand, It'll work better, 
>longer. 
>
>Twice in my life I've open the door to my old NOC to the acrid smell
>of burnt components and smoke and found a rack mount APC UPS 
>clicking on and off in that cycle. 
>
>The other weird thing about APC's is many of them switch 'on' for 
>frequency shifts in the line frequency.. and it does not take much of a 
>shift. This is a real problem if your generator oscillates a little on 
>center frequency. Most other UPS's switch on missed pulses/cycles or 
>average voltage drop. I've seen bad line power frequencies that bothered
>nothing else cause an APC's to "eat itself". 
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