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Unread 02-26-2013, 06:16 PM   #1
Not Yet Wild
 
Join Date: Feb 2013
Posts: 7
Default Negative Voltage on Cart Frame

The cart is a Club Car DS 1996 Non-Regen, 48Volt. I have had problems with the charger running for extending periods (14 to 16 Hrs.). Have ruined 4 batteries. When I started checking I found that I have 40 to 42 Negative Volts on the cart frame and all of the other metal parts. My local Club Car dealer has bascially thrown up their hands and said they don't know why. Anyone out there experienced this?
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Unread 02-26-2013, 06:48 PM   #2
Gone Wild
Yamaha
 
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Default Re: Negative Voltage on Cart Frame

It is usually just leakage due to acid which is conductive. Clean everything very well and it should not be a problem.
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Unread 02-26-2013, 07:37 PM   #3
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Default Re: Negative Voltage on Cart Frame

I've removed all the batteries and cleaned the battery box and the coated it with undercoating. All of the heavy cables are 4AWG and I cleaned both ends with a wire brush. While the batteries were removed I checked the frame and the negative voltage was still there. Any other suggestions.
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Unread 02-26-2013, 09:26 PM   #4
Getting Wild
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Default Re: Negative Voltage on Cart Frame

okay, no batteries hooked up, charger not plugged in and you still read negative voltage?
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Unread 02-26-2013, 10:42 PM   #5
Gone Wild
 
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Default Re: Negative Voltage on Cart Frame

How can you determine that the voltage is negative or positive when you have the batteries removed?
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Unread 02-27-2013, 05:40 AM   #6
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E-Z-GO
 
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Default Re: Negative Voltage on Cart Frame

Quote:
Originally Posted by notsoquick View Post
The cart is a Club Car DS 1996 Non-Regen, 48Volt. I have had problems with the charger running for extending periods (14 to 16 Hrs.). Have ruined 4 batteries. When I started checking I found that I have 40 to 42 Negative Volts on the cart frame and all of the other metal parts. My local Club Car dealer has bascially thrown up their hands and said they don't know why. Anyone out there experienced this?

. . . I am assuming that nowhere on the cart is a negative cable connected to the frame . . ???
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Unread 02-27-2013, 09:45 AM   #7
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Default Re: Negative Voltage on Cart Frame

Good point, I had a reading of 40V and I assumed it was negative since all the other readings with the batteries in place were negative.
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Unread 02-27-2013, 09:47 AM   #8
Not Yet Wild
 
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Default Re: Negative Voltage on Cart Frame

There is no negative cable connected to the frame.
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Unread 02-27-2013, 10:22 AM   #9
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Default Re: Negative Voltage on Cart Frame

Quote:
Originally Posted by notsoquick View Post
Good point, I had a reading of 40V and I assumed it was negative since all the other readings with the batteries in place were negative.

. . . only way I get a negative voltage reading on my battery is when I place the positive VOM probe on the negative terminal and the negative VOM probe on the positive terminal . . . .
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Unread 02-27-2013, 10:54 AM   #10
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Club Car
 
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Default Re: Negative Voltage on Cart Frame

Do you have any thing such as a radio, lights, connected where you have attempted to use the frame as a ground?

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