My battery doesn't charge... I thought it was the battery, I replaced it. Same issue.

I thought it was the crappy ammeter I had installed. Removed it, same issue.

I loosened up the negative battery terminal, so I could pull it off with the motor running to see if the alternator was working. The car wouldn't even crank... Just clicked like the battery was dead. Nothing (fan, water pump) would go on, either.

What does this sound like - a bad ground?