Been stuck trying to figure out this problem, I have a Napa 2134011SW alternator. And can not get any type of charge to the battery. I’ve replace the alternator twice as well as had the battery tested. I have a very simple setup with no accessories on. I have 2 gauge wire( new wire) going from the main batt+ terminal of the alternator to the positive post of the starter (mini starter) . Then to a kill switch(summit push/pull) and to the battery( optima yellow top under 5 years old) in the trunk. Ground wires go from battery to bell housing bolt. As well as two engine to frame wires and a separate wire from frame to the big ground lug on the alternator. With all this the voltage never changes and slowly drops. From all my research this is the 1 wire alternator to get. Unless they changed something within the last few years I shouldn’t be having any problems, but I still can’t get a charge. Any help would be great. Thanks !