Re: Battery died
After driving the car you may have a drain due to issues with car. Easiest thing for you is to remove battery terminal while not driving to see if a week REST has an effect or not.
Beyond that you could pull the + terminal and measure the current draw with doors shut and car OFF. That requires a meter and experience. I park for weeks and have an EXTERNAL connector by windshield blade on passenger side, for a TRICKLE charger when stored. JUst remember to pull the trickle connector when backing out of parking space-garage. Woody