Cars, trucks, RVs, and motorhomes run dual 12-volt batteries for various reasons. Depending on how you wire a two-battery 12-volt system, the result can be a 12-volt system or a 24-volt system—or even ...

I have a APC Back UPS PRO 1000.<BR><BR>The batteries died in it a few months ago and were recycled. I want to adapt this unit for use with a car battery for some testing. Of course the batter was not ...