Another Marathon

[rich_p]

Just took in a 93 marathon with the obligatory rusted out battery tray but it seems like this project has been done here before. I know I have a good amount of work ahead, but I am also in no rush. First, I want to see if the existing 36v controller and motor are still functional, but I have grand plans to go to 48v in the long run (sooner if existing electronics are shot). I'm thinking I take the 12v deep cycles from the boat when the season is over and wire them in series just to see before investing in official cart batteries. Once I know what works, I can cut out old battery frame (not much left) and fab a tray from some angle iron to fit whatever batteries I go with. Open to any suggestions and guidance, and hopefully I can lend any knowledge in return.

Sorry for sideways pics

[LukeL]

I’ve done that a few times. And old bed frame works great.

[LukeL]

[rich_p]

Pretty much exactly what I am dealing with. Did you stay with 36V or change to 6 8V batteries? Can the 36V motor handle 48V with the right speed controller?

[LukeL]

Originally Posted by rich_p

Pretty much exactly what I am dealing with. Did you stay with 36V or change to 6 8V batteries? Can the 36V motor handle 48V with the right speed controller?

These were for customers, so I left them both 36v. That said, with the right controller, solenoid, and cable set, the motor will do great on 48v.

[copajoe]

Originally Posted by LukeL

These were for customers, so I left them both 36v. That said, with the right controller, solenoid, and cable set, the motor will do great on 48v.

will an Navitas 48 volt DC controller with ezgo adapter work? and 400 amp 48 volt solenoid?

do you have to change the wiring harness as well?

I am working on this as we speak!

[LukeL]

Make sure it is a controller for series motors. Most series controllers don't need any kind of adapters but not sure about the Navitas. There is very little "wiring harness" to change in a cart like that.