Originally Posted by vwnate1

0.3 volts drop between alternator and battery is *extremely* good ~ you're allowed .1 volt per physical connection as a loss .

This is why adding a simple ground cable between the battery proper and the engine block makes the charge rate go up and increases cranking speed cold or hot .

I made up a tandem ground cable that goes from the battery to the body on one leg and the intake manifold on the other leg .

Brighter lights too .