93 Altima Charging at 11.85 Volts

depends where you got the alternator's from! Remember, if the person rebuilding the alternator is having a bad day, the customer will get the end result.

could be a snuffed out voltage regulator too, which is built into the alternator.

Try going to a different place to get one.

Turns out, there's a wire that goes under the radiator, across the front of the car, that was dead-shorted. Ran a new wire, and all seems fine.

Interestingly enough, my mechanic noticed that the idiot light wasn't coming on with position one of my ignition switch, and that the bulb was good. This might be a symptom for anyone with this same problem to look out for.

-Bob