Quote:
Originally Posted by patssle
Per DIY UPS - why not just connect the car batteries to a UPS with the original battery removed? I wonder if that would work correctly.
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I would imagine the larger batteries would draw more current, not sure the old circuit could handle it.
Bottom line the modern UPS is a disposable device, we have researched it here at work, even if you buy replacement batteries and solder them in yourself it is not cost effective.