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Electric Club Car Electric DS, and Precedent golf cars |
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02-27-2013, 12:13 PM | #11 |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Negative Voltage on Cart Frame
Your motor could have a partial short to the case. You will need to remove the cables from it and test each terminal to the case for resistance. Any low resistance reading would be your problem!
Make sure to disconnect the battery pack + and - cables, label your motor connections, and hold the nut under the cable ( nut nearest the motor ) so the stud doesn't turn while you're removing the motor cables. |
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02-27-2013, 12:55 PM | #12 |
Gone Wild
Join Date: Oct 2008
Location: Ga
Posts: 740
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Re: Negative Voltage on Cart Frame
Simpleman is correct,
I had the same problem on my cart and It was the motor leaking juice going through the rear end through the leaf springs into the frame. My motor was just over worked for a long time, 25" tires with a 500amp FSIP will fry a bandit motor. I replaced the Bandit with a torque & speed motor and I get no readings on the frame. Amazingly the Bandit still works, I just stalled it out to many times in the woods. Steve |
02-27-2013, 01:29 PM | #13 | |
Medicare Recipient
Join Date: Jun 2011
Location: West Michigan
Posts: 3,541
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Re: Negative Voltage on Cart Frame
Quote:
. . . except he stated . . "While the batteries were removed I checked the frame and the negative voltage was still there." . . . |
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02-27-2013, 01:33 PM | #14 |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,284
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Re: Negative Voltage on Cart Frame
Yeah, back up the bus on this one. We need this statement clarified.
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02-27-2013, 03:00 PM | #15 |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Negative Voltage on Cart Frame
Yeah, I missed that part too! I do know the controller capacitors will hold a charge for quite awhile. Could that be the voltage reading with no batteries installed?
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02-27-2013, 07:37 PM | #16 |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,284
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Re: Negative Voltage on Cart Frame
Highly unlikely. I keep thinking we have a funny multimeter here. Or it's on the wrong dial setting, ohms perhaps?
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03-11-2013, 05:38 PM | #17 |
Not Yet Wild
Join Date: Feb 2013
Posts: 7
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Re: Negative Voltage on Cart Frame
I just replaced all 6 batteries, installed all new 2AWG cables from steveb. Great cables btw. Also recleaned the entire battery box and recoated with undercoating. Still have some power to the frame (9.5 volts) as compared to before, 40 volts. The other problem is the charger will not shut off. I have to manually unplug is when the battery pack gets to approximately 61 volts. Any thoughts on the charger issue?
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03-11-2013, 05:41 PM | #18 |
Not Yet Wild
Join Date: Feb 2013
Posts: 7
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Re: Negative Voltage on Cart Frame
My bad, the cables came from scottyb not steveb.
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03-11-2013, 06:08 PM | #19 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,170
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Re: Negative Voltage on Cart Frame
As I said before, it only takes a little leakage anywhere to get some voltage between the battery negative and the frame. The meter is a very high impedance so it doesn't take much to make that happen. Try putting a 10K resistor across the meter leads when you make the measurement and I bet a beer that the voltage goes down to less than a volt.
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03-12-2013, 11:45 AM | #20 | |
Not Yet Wild
Join Date: Feb 2013
Posts: 7
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Re: Negative Voltage on Cart Frame
Quote:
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