Btw, aside from the old battery, you might have something in the car that drains it excessively. IIRC I've had the audio system plugged in a wrong way and it pu

Btw, aside from the old battery, you might have something in the car that drains it excessively. IIRC I've had the audio system plugged in a wrong way and it put a small but considerable constant discharge on the battery, even when the car was off. Alarms themselves can do this too, I think.