7.3L Power Stroke Technical Info
As usual, not covered in searched threads . . .
Batteries brand new 3 months, holding 12.6 after sitting.
Old alternator died. Replaced with Duralast.
Ford Gauge and Edge Insight CTS2 show charging at 13.6 - 13.8.
PCM was cleared.
Alternator tested by Autozone and shows good.