[Richard]

My research was personal experience. Two penn tex 385 amp alternators in four years charging 6 8d batteries. The alternator would charge at around 200’amps for several hours. We did a bit of dry camping then. My practice was to crank and roll. In addition to replacing alternators, i was frequently replacing ruined alternator belts. When i stopped practice of charging the house batteries with the alternator, and instead charging with the generator/inverter charger, i have not had an alternator failure in the last ten years.

At the time, ten to twelve years ago, i began to monitor class a forums for cause of alternator failures. I personally concluded that many of the failures were cause by the same practice i was using.