There is sufficient drain overnight to render a quick start impossible. I had to resort to push starts...and I tell ya... pushing this beast uphill fast enough is hard. :^)
Anyway...I think I may have found the cuplrit. I went ahead and disconnected all the positive leads and reconnected them one by one. As I reconnected the plow leads I realized the relays, for the plow system, were clicking....little light goes off in my head....that's gotta be it. So as of this moment, the plow leads are disconnected and I'm checking to see if the drain is still ongoing. I should know here shortly.