I may have a bad battery, or worse.

What is your question?

My car would not start, but I had headlights interior lights ECT. So I got a jump from a friend and it kicked right on, but as soon as I shut it off, I tried to restart the car..nothing not even a racing noise just one click sound. So I repeated these steps bit left car on for 30 minutes and drove around to see if battery would charge. When I got home shut it off, I immediately tried to start it again...nothing just dead. But i have power, just not alot off it.

What makes this problem better or worse?

Shutting the car off, I can't re start without a jump

How long has your 2009 Volkswagen CC had this problem?

This issue just started today with no warning.