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Old 08-12-2023, 10:00 PM   #11
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Location: Western NY
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Default Re: Wiring EZGO to Roypow lithium

Originally Posted by TheCartBoy View Post
That's the charger interlock signal wire. It prevents the cart from driving while the charger is connected. When the charger is disconnected, this signal is pulled high to B+.

Since you've deleted the charger port you will need to connect that wire to B+.
I had a feeling this was it. I ran into the same issue on mine.
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Old 11-20-2023, 03:23 PM   #12
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Default Re: Wiring EZGO to Roypow lithium

Good afternoon folks,

I am new to the cart world and to this forum and this is my first post. I know this is an older post and I've been reading and watch a ton of videos over the past 3 days that I think I've confused myself (not hard to do) but I think I have the same issue.

From when I can tell I have a 1996 EZGO Medalist cart that was pretty given to me with 6 dead batteries. I decided to go with lithium's instead of the normal ones so I order a 2 battery bundle kit from Ionic.

I just finished installing them and they are wired in parallel with the onboard lithium charger wired per their instructions. All of my 12v accessories are wired to the 12v step down and they're working great. I'm pretty sure I have everything wired up correct but the cart will not do anything when the key is turned. Is the charger interlock signal wire the 3rd wire on the back of the stock charging port?? If so does it need to be moved to the B+ on the 36v battery or to the B+ on the 12 volt step down (I'm guessing the B+ of the 36V battery because it most likely back feeds the wired from the battery when the chargers isn't connected)??

Any help you folks can offer would be greatly appreciated.


PS. I'll be doing this to my neighbors 48v cart in a few days as his batteries are toast too. His is a newer model (not sure what it is right now) with a a run/tow switch under the seat so I'll have to read up on that one too.
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Old 01-16-2024, 01:46 PM   #13
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Default Re: Wiring EZGO to Roypow lithium

Any feedback on how this setup is working out for you?
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conversion, harness, lithium, wiring
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