Re: Who owns a UPS (Uninterrupted Power Supply)?

On Sat, 21 Aug 2010 09:34:38 -0700, Bug Dout rearranged some electrons to
say:



Speaking of UPSs, mine (a consumer grade APC model) probably should have
the battery replaced. I don't want to pay the exorbitant cost of an APC
battery, it's just lead-acid after all. Would a car (12v) or motorcycle
(6v) battery, wired in place of the APC battery, do just as well? More
capacity (on-battery computer life) for less money.

Absoultely not. All batteries are not created equal. A vehicle battery
is not designed to be discharged completely, it is designed to provide a
high current discharge for a few seconds. Addtionally the charging
characteristics of a starting battery are different than one made for
deep discharges. Using a battery not designed for the UPS will at best,
damage the UPS and battery over time, or at worst, start a fire.
.

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