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Extending UPS life

>Either way the verdict is clear: try minimize the load
>you put on the UPS to what you consider critical
>components only.
>A friendly reminder: Since most UPS use Lead-Acid
>batteries (ie a car battery), logic tells me you
>should keep it fully charged at all times & shouldn't
>do too many of these "full drain tests".  Or you may
>significantly shorten it's life & capacity, just like
>if you leave the car lights on far too many times. :P

Also if you are interested in extending the "run time" of
one of the small ups's you can easily replace (not in the cabinet)
the current battery with a marine deep cycle battery. This will
not change the capacity ie 350va of the ups, but will dramatically 
extend the run time. As usual this is not advice, do not try this at home,
your results may vary.....