Norm, You don't have the rest of the diagram. I do not believe there is enough information. The A thru J conector is just that, a connector, right? C D and J are the charging system but I don't know what they go to. It shows one 24 volt battery, I used 2 12's just to get mine to run but I never did figure how to charge it, good luck. Let us know if you figure it out.