[bbetterton]

The large black wire is running from the - post of the first battery in the series through the OBC and to the controller as it should. The wire which is not hooked up is the black wire that hooks up to the charging receptacle fuse and runs to the OBC. It has been unhooked and the black wire from the charging receptacle has been hooked up to the same post on the first battery in the series as the large wire which is running through the OBC and to the controller. What I don't understand is why I have never had any problems before. Theoretically the way in which it is hooked up should have never worked to start with.