An alternator is a generator that produces the electricity stored in a vehicle’s 12-volt battery and powers the starter motor for the engine and the various computers, lights, power windows and locks, ...

For most of us, purchasing a vehicle and leaving things untouched is nigh on impossible. Apparently it's ingrained in our hot rod DNA to mess with things better left alone. Sometimes, however, it's ...

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 ...