Here's what I had done. I can plug a battery from either side which works, but now I need a nother adapter to plug it to the quad side, the connectors don't match if I want to plug the wattmeter between them...that manual has two in and two out which these plugs don't have. They are one in and one out...I just used the batteries to make sure I could plug them in on either side. I guess this is what happens when there's no standard.
I guess I can always redo the load side. I just found another battery plug I had cut that I can use to reverse this side. I'll just soldered the correct side on the other end...I'll have to reverse the load end. The one I found is too big 12awg which is more of a pain to solder.