2007 Charger won't start

Moved my car 12/31/15 to a side driveway. Tried to open truck that was
froze shut, could not open. Went to move car a week later and the battery
was dead, completely couldn't even unlock the doors. 2 weeks later I
Charged up battery and now it just turns over like it's trying to start but
doesn't. Almost like it's out of gas but it's not. 1/4 tank gas, car tilted rear-
end down hill. I assumed the battery went dead because the snow melted
and the truck was unlocked. Is there a reset that must be done after sitting
with no power this long?