Electric went out while driving, drove it home no restart.

2008 4.0 V6 230,000
I was driving home and noticed that some idiot lights came on, then everything on the dash went out, headlights gone, no wipers or radio. I tried restarting it after I got home and got a bunch of fast clicking. The battery is a couple of months old, a warranty replacement. I'll put the meter on the battery tomorrow morning.