charger wiring

Had a over heat issue taking long slow rides at the campground. Did some research and they recommended getting some heavier cables ands getting an HD Forward & Reverse switch. So i bought one and installed it. Took for a quick trip and worked fine. Also replaced the charging port** wife took...

Got a 2008 48 volt ezgo. Batteries were all unhooked when bought. I replaced batts and now charger flashes red green a few times then nothing. I suspect I have charger wires wrong. Looking for diagram. Also brake works fine riley you turn key off. Then brake disengages and cart will roll...