My stock alternator crapped the bed finally after working hard for 12 years and 210,000 miles.
With all of the electrical upgrades I have on my Nissan, I decided to put a high output alternator on.
I went with Steven at Rugged Rocks to help me order a 270 Amp High Output Alternator from DC Engineering.
My voltage before the upgrade would fluctuate between 11.5-12.0 volts during normal driving conditions.
Now, I sit at close to 15 Volts at idle and around 15.2 volts when driving.