Lowered 97' EZGO TXT lithium 36v to 48v build

[Riso]

Ok, so I have been asked by a few of you to do a build thread on my cart. I bought this cart for $300 off of Craigslist. It needed batteries and a little TLC. I sold the batteries for scrap at $10 each. I also sold the old controller for $150 and the 36 volt charger for $125. So now I am up $35

[Riso]

Teardown. No rust (California cart) just a little dirt.

[Riso]

So, since I am lowering the cart, I cut the drivers side rear shock mount to give plenty of clearance for the motor since I moved the axle forward 1" to center the tires in the wheel wells. I also ordered an Alltrax 48400 DCS controller and 200 amp solenoid from Scottyb. I made cables out of 0 gauge wire (overkill).

[Riso]

I ordered two Chevy Volt 12 cell lithium batteries and a volt meter off of ebay. These batteries are normal voltage 44.4 volts and 100% charged 50.4 volts.The board is a BMS to balance the individual cells in each battery. There is one on each battery. I am not using them to control the charger. I did enclose them in a waterproof case ( not pictured). I am keeping the stock 36 volt motor until it dies . The first run on the cart with the batteries at 45.4 volts, no charger yet, was 25 mph on stock tires.

[Riso]

So originally I wrapped the cart with blue carbon fiber 5 mil vinyl. Pain in the *** to do. After it was done The wife and I didn't like it. She said "rip it off and paint it" so I did. After all " happy wife, happy life!"

[Riso]

So I built a getto paint booth in the garage. I went down to the local auto body supply and bought adhesion promoter, reducer, a quart of PPG satin black, hardener .....etc. I already had an HVLP paint gun form Harbor Freight Tools and a compressor. I had painted a car back in the 80's but nothing since. Time to try my skills or lack of again. I painted the roof with Rustoleum bed liner out of a rattle can. We will see how it holds up.

[Unsoshl]

What about just the $$ in the lithium conversion? In Cali also and reeeally thinking about converting.

[Riso]

The batteries are running between $300 and $500 each. You can get a charger for about $120 to as much as $400 depending on which charger you use.

[E36Racer]

Nice setup. Cool to see a variation from a leaf pack.

What BMS setup are you using and how difficult was it to wire up? Did you have to figure out the pins on that main plug on top of the battery for the BMS harness? Or were you able to obtain a pin out diagram for the plug? Also did the batteries come with said plug?




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[hipower]

It is great to watch and follow you guys through the pioneering of the new battery technology for our carts. It will be a great day when we can have simple plug and play packages available for those of us who are not nearly as adept at these things. Thanks to all who are out there on the leading edge of the charge.