I checked with weather.gov and you all down in Georgia have been having a heat wave.

You may be suffering from the same thing we have been talking about over in the Altima forum. A battery sensor that thinks the battery is overheating because of the extreme 100+ degree heat.

If the sensor thinks the battery is too hot, it may shut down the recharge until it thinks the battery is cooler. Nothing wrong would show up at the dealer because it’s a safety feature that is working, as it should.

This is just a theory however, and I know next to nothing about your car.