Batteries dead in the morning. Why?
Hey y'all, need some advice here. I have an '03 F250 6.0PS/Torq Shift with just over 100K miles. It's basically stock. The only "mods" are EGR delete, Cat delete, coolant filter, GoGo direct clutch solenoid and an Edge EVO HT tuner set to the lowest "tune" of "economy". Everything else, FICM, ECM, ect is bone stock and I believe original.
Anyway, the batteries are about a year old so I doubt they are the problem and the alternator is putting out 13.8 volts at an idle.
I live in the salt belt (MI) I bought this truck in Texas and it's really nice so I don't drive it in the winter. I also don't need/use it so I just store it and drive my POS Cherokee.
This has happened twice this year, about a month after I got it out of storage, around April and again last night. What's happening is I come home from work, park the truck and when I get up in the moring to go to work the batteries are dead, I mean DEAD! As far as I can tell I didn't leave anything on, no doors open and there doesn't seem to be anything obvious.
Which brings me to my questions:
1. If I did leave the dome light on or a door open, doesn't this truck have the "timer" that shuts it off after like 45 minutes? (Maybe I didn't shut the drivers door all the way and then when I go to start it, I don't know 'cause I already opened and closed it.)???
2. Does anyone know if there is something common that could be causing this or has anyone heard of this before?