[delco1946]

You'll know you've set it too high with the lights on (at night) and you go on the highway and the dash bulbs start glowing brighter and brighter as you approach 70 mph - its absolutely maddening! lol I think that's the biggest downside of a generator - faster you go, the more voltage it generates. The VR helps set the upper and lower bounds.

Took me awhile to hit that sweet spot. If memory serves I think I am somewhere in the 7-8 volt range. For 12 volt batteries I think you generally want to hit ~13.4 volts while charging so i applied that same thinking to my car and probably targeted ~7.4 volts.