Battery discharging while in storage

[DeltaMustang65]

Thanks guys. I think I'm gonna go looking around this week for a charger of some sort. Any suggestions for a good brand? If I get one I want something that's gonna last a long time, since I'm probably gonna be playing with classics forever. Oh, and about the gas, I think it's fine. I put sta-bil in the tank and every few days when I'm bored I go sit on the back of the car and jump up and down just to keep things mixed up. haha does anyone else do that? I can't be the only one. Honestly I don't even know if it works, I just started doing it one day.