Need help with Golf Cart E-Z-GO 12v battery conversion

[/pine]

This website a great resource for troubleshooting golf cart issues: Electric EZ GO RXV, Marathon, Medalist and TXT I had a 2 cycle ezgo for a few years and found the people there to be very helpful- they have different forums for gas, electric as well as other brands.

Agree 100%...this is the place to go for expert advice for an electric cart...and everything associated with them...hands down...!

 

[BrokeFarmerJohn]

I drove the cart around for awhile today, it scoots around good, it didn’t heat up as much today, I think I’m good, I put it on the charger after my trip.

For curiosity I will test how long it will run on these batteries when I have time.

Most likely I will sell the cart to my boss, he was wanting a golf cart and two of the batteries he has access to the same as I do so he can replace two of the three batteries every 3 years for free.

I just bought the cart to make money on it and wanted to see if I could do it which I did. If I get more batteries later this year I will be doing this again with another cart.

 

[Industrial Toys]

As another test. It's a good idea once the batteries are charged to put a voltmeter on them. That means all of them in series. For 36 Volt, it should be a little higher.

I worked with a fire alarm tech once that put a 6 volt wet cell in a string backwards. It charged up! But I think the equipment still didn't see the right voltage and was in trouble.

 

[BrokeFarmerJohn]

As another test. It's a good idea once the batteries are charged to put a voltmeter on them. That means all of them in series. For 36 Volt, it should be a little higher.

I will, I have a few connectors to replace still also so I’m not 100% done but happy and excited the cart works lol

 

[Industrial Toys]

I will be replacing my E-Gator batteries this spring. 48 Volt. Every now and then a friend gives me some almost new take out batteries from inverter systems. Usually two or four similar 6 volt ones. By spring I should have the other two I need to make up the 8, but am a little apprehensive about different batteries.

What's the worst that can happen?

 

[techman]

Brokefarmerjohn:

Your battery pans look like either you were a tin knocker, or had one make them for you !

paul

 

[Gem99ultra]

I would assume that the controller has a voltage regulator, or it is tapped into a 6V point somewhere in the battery system. Hopefully you haven't damaged the controller; you do NOT want to buy another controller - $$$.

I also have a '94 TXT style EZGo cart; similar but not identical to your '87. I replaced the 6 batteries last year with high-dollar 6V Trojan 105's. Worked super for about 6 months, but now they'll only hold a charge for about 2 miles of driving. At Trojan's prices, I won't be buying any more Trojans. I'd love to replace that 6 piece set with 3 - 12V batteries. Hope your switch works out. If it does, guess who else will be making that mod? Please keep us posted on what you find out.

 

[aczlan]

I will be replacing my E-Gator batteries this spring. 48 Volt. Every now and then a friend gives me some almost new take out batteries from inverter systems. Usually two or four similar 6 volt ones. By spring I should have the other two I need to make up the 8, but am a little apprehensive about different batteries.
What's the worst that can happen?

I would charge them all and then put a load on (with a tester such as: Schumacher BT-1 1 amp Battery Load Tester, Battery Testers - Amazon Canada ) them and make sure that they "draw down" about the same after you put a load on them for 30 seconds or so.

Aaron Z

 

[BrokeFarmerJohn]

Brokefarmerjohn:

Your battery pans look like either you were a tin knocker, or had one make them for you !

paul

I do HVAC so I had 26g sheet metal and S-Lock laying around, all the tools to make them so that’s what I came up with. It works, keeps the batteries from falling to the ground lol.

 

[BrokeFarmerJohn]

I would assume that the controller has a voltage regulator, or it is tapped into a 6V point somewhere in the battery system. Hopefully you haven't damaged the controller; you do NOT want to buy another controller - $$$.

I also have a '94 TXT style EZGo cart; similar but not identical to your '87. I replaced the 6 batteries last year with high-dollar 6V Trojan 105's. Worked super for about 6 months, but now they'll only hold a charge for about 2 miles of driving. At Trojan's prices, I won't be buying any more Trojans. I'd love to replace that 6 piece set with 3 - 12V batteries. Hope your switch works out. If it does, guess who else will be making that mod? Please keep us posted on what you find out.

It works fine, you can’t just use regular car batteries, the big batteries I have retail for around $450 each, you may be able to find them cheaper, I only used them because I get them for free at 3 years old every three years from work so I have a few laying around. I have more money in 12v batteries in this cart than I could have replaced the 6v for, if they were bought new.

You might get away with a deep cycle marine 12v batteries or shell out for big D8 batteries like I have but regular car batteries won’t work, they will die too fast.

Duracell Commercial Battery - Group Size 8D - Sam'''s Club
Just found this, you can buy Duracell cheaper but one of these replaces 2 6v batteries so it’s not much of a saveings. Rural King has the 6v batts around $79 each I think