Well, I killed my battery over the weekend. I was out working on the car doing a mod (adding a glove box light) and I left the key in the car overnight... in the on position... in -5F weather. Sadly, its completely dead. I even put it on a charger for 2 days straight. This measurement was taken after I took the charger off.
On the positive side, I can now drop a deep cycle into it...
