We came home this morning and I wanted to load some stuff in my truck. Juli and I are going to Big Bear Lake today. My truck is dead as a hammer, nothing at all. Its a 2013 F350. I have a booster charging and I cant seem to find my jumper cables. But besides all of that, what would draw load on the batteries and kill them? The only thing plugged in is my tuner, but I didnt think it drew that much current. It has sat for about 6 weeks in the garage. Up to the day I parked it no issues. Any ideas? I am half afraid to drive it even if I get it started. Thoughts?