Car has new battery and just clicks

What is your question?

My son drove through about 10-12” of water and the car stalled. The lights were left on, so when I got it home it wouldn’t start. We replaced the factory battery. When it was put in today it just clicks like it’s still a dead battery. What do I need to look at now. When u turn the key, the motor doesn’t seem to turn over. I know that the car needs to dry out but I was wondering if there was anything else I could do

How long has your 2007 Chrysler 300 had this problem?

For a weak