Re: Something's draining my battery
Is this still the original battery ??
If so it is likely 5 years old now and low mileage really has nothing to do with battery life.
A dead battery can not be sufficiently charged by just the alternator either.
In fact it is a strain on the alternator to even run the car on a weak of low battery.
Get the battery a deep charge on a charger and follow some of the advice James gave you here.