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Extreme DC! Extreme Electric Golf Carts!



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Old 01-17-2012, 08:53 PM   #81
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Default Re: 72v for offroad

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I have on my other carts! No problems as of yet. The Mud buggie had a walmart key switch in it and it has never failed.

Oh god don't everyone go nuts on the WalMart Key switch please!
Thats the only place I could think of that you really couldnt upgrade.I didnt know if u could cut the voltage down to the switch or something.Maybe a relay?
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Old 01-18-2012, 12:14 AM   #82
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Talking Re: 72v for offroad

Here is one of the simplest drawing anywhere on doing a F/R contactor.

This is for series carts no matter what brand.




Ok here it is again with some added features. Sorry guy's I'm not a drawer.

Say the batteries are 12 volts in the picture. 3 of them which is 36 volts. This applies to any cart and any wiring. Voltage doesn't care which one it is.
The main contactor is 36 volts so. You take the back side which is the big terminal that has no power on it when the key is in the off position. The cable from solenoid to controller side. Attach the activation hot wire for the F/R switch. Then the wire for Forward is attached to contactor as is the wire for the reverse side. Then run the ground wire to the - of 3rd battery. Simple.

Now if the F/R contactor is 12 volt activated then we need to run the power wire from the same terminal to the switch and both the F/R wires. The ground wire though will go back to the - of the first battery. This gives you the 12 volts and when you turn the key off it cuts power to the switch. You can stair step it all the way up,24v,36,48,60,72,84,96 whatever. Simple guy's.


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Old 01-18-2012, 11:11 AM   #83
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Default Re: 72v for offroad

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The throttle will be handled by the controller so you buy it to match. The F/R contactor is all just like if it was a handle except done by electric. You hook the cables up just like on the mechanical switch.
but the mcor is what senses throttle position to tell the controller though right
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Old 01-18-2012, 02:05 PM   #84
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Wink Re: 72v for offroad

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but the mcor is what senses throttle position to tell the controller though right
Yes, that's why you buy the controller to match the throttle type.!
The F/R have nothing to do with the rest of the wiring. The wiring for the golf cart stays as is.
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Old 01-18-2012, 02:34 PM   #85
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Default Re: 72v for offroad

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Yes, that's why you buy the controller to match the throttle type.!
The F/R have nothing to do with the rest of the wiring. The wiring for the golf cart stays as is.
ok, just wanted to make sure. you know i dont know jack about these electric things
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Old 01-18-2012, 05:51 PM   #86
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Wink Re: 72v for offroad

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ok, just wanted to make sure. you know i dont know jack about these electric things
Understand sir! The carts main wiring will be as it is now.
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Old 01-18-2012, 10:31 PM   #87
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Default Re: 72v for offroad

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[B]
Now if the F/R contactor is 12 volt activated then we need to run the power wire from the same terminal to the switch and both the F/R wires. The ground wire though will go back to the - of the first battery. This gives you the 12 volts and when you turn the key off it cuts power to the switch. You can stair step it all the way up,24v,36,48,60,72,84,96 whatever. Simple guy's.
Andy

What advantages do you have of doing a 12v activation circuit versus a 36/48 or 72 in this application?
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Old 01-18-2012, 10:55 PM   #88
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Wink Re: 72v for offroad

The only thing is price of the F/R contactors. Have you priced them? There is no advantage as far as the setup. I was just putting info out there for people to see what can be done.
I for one like to use stuff I have if at all possible, if not then I buy what I need.
I sometimes buy stuff to experiment with also if the price is right.
That's why I have some of the 12 and 24 volt F/R contactors.
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Old 01-18-2012, 11:37 PM   #89
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Default Re: 72v for offroad

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The only thing is price of the F/R contactors. Have you priced them? There is no advantage as far as the setup. I was just putting info out there for people to see what can be done.
I for one like to use stuff I have if at all possible, if not then I buy what I need.
I sometimes buy stuff to experiment with also if the price is right.
That's why I have some of the 12 and 24 volt F/R contactors.
Yes I have been pricing them, and they don't really make me happy So will a 12 activation work lets say on a 48v system?

Colby

Not trying to hijack thread, just trying to add to it and learn something,,,
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Old 01-19-2012, 12:01 AM   #90
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Default Re: 72v for offroad

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Yes I have been pricing them, and they don't really make me happy So will a 12 activation work lets say on a 48v system?

Colby

Not trying to hijack thread, just trying to add to it and learn something,,,
No worries, I'm learning from your questions too.
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