Wondering if anyone can tell me what is going on regards to my volts dropping from typical 12.5+ to 10.1 as I was leaving Prosser this afternoon. I shut down nav lights and lighting and it took about ten minutes to climb back to 12. I am thinking its time for a new stock alternator from Vans. I ordered my kit in 2014, so I think its the Plane Around set up. Also thinking of putting that second alternator in and welcome any thoughts. Thanks in advance.