I run 2 batteries because back in 1980, I got hung up in the Floyd Knobs of Indiana, winch killed the battery and truck would not crank!!! Cost $130 to get an off road wrecker to get me out!!! Alcohol was involved, however I have had 2 batteries with isloator since (and more alcohol) !!!;D;D;D
Well, you had the alcohol, that makes it difficult for anyone to argue that you were not prepared......