G16e Lithium Conversion

[notime2d8]

Hey, I hope this is the right place to post. I hoping some experts could look at my build or parts list as I go and make sure that I don't burn down my garage. But someone gave me a 1996 Yamaha Golf cart that had been sitting up since the charger broke. I plan on using it mostly for yard work and maybe camping twice a year.

Where I'm at so far, I've cleaned it, removed old batteries, cables, wiring, and FNR switch.

Then I ordered two 24v 7s3p 24ah batteries that I plan to series and run one 14s BMS for balancing and charging only and not for low voltage protection. No one will be using it but me, and i plan to use the controller for LV cutoff and have a meter.

These are the parts I'm set to get and probably the order that I will buy them.

• EZ-GO 4-pin key switch
• Daly Smart 14s 48v 40a BMS
• MZJ-400a Solenoid
• SW202 Reversing Contactor
• 48v Li-ion Charger
• 2g welding cable and 3/8 lugs
• Alltrax SR48500 Speed Controller

For the ez-go 4-pin switch, would there be any issue with wiring it where the lights and radio come on first like a car ACC, and the cart come on with the second position?

I also ordered four 4s3p 14.4v 6.6ah batteries with built in BMS and was planning on paralleling and running the lights and radio but I can only safely pull 15-20a from them which is less that the 48v-12v convertor I was looking at. And neither would be good enough for a winch. I may just get a small AGM battery.


Any tips, feedback, or used parts are welcome.