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Electric Club Car Electric DS, and Precedent golf cars |
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09-20-2017, 08:17 AM | #1 |
Not Yet Wild
Join Date: Sep 2017
Posts: 4
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cart wont keep speed, starts fast then dies
1997 club cart
48 v A9741-613476 batteries are saying they are full charged. the cart starts off driving like normal we get down the road and it gets slower and slower you can let off accelerator and it gets a little faster then if you mash down it starts shaking a little and gets slower.i have tried to by pass obc but it doesn't help. |
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09-20-2017, 09:40 AM | #2 |
Gone Wild
Join Date: Sep 2010
Posts: 190
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re: cart wont keep speed, starts fast then dies
There are way smarter people here than I, but shaking is a classic sign of batteries being shot. Have you measured them under load?
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10-10-2017, 06:47 PM | #3 | |
Getting Wild
Join Date: Aug 2016
Location: Illinois
Posts: 104
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re: cart wont keep speed, starts fast then dies
Quote:
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10-10-2017, 07:58 PM | #4 |
revolutiongolfcars.com
Join Date: Mar 2010
Location: Golf Car Capital of The World... Augusta, Georgia
Posts: 10,224
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re: cart wont keep speed, starts fast then dies
Sounds like low voltage to me as well.
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03-15-2018, 05:07 PM | #5 |
Not Yet Wild
Join Date: Jun 2017
Posts: 3
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Re: cart wont keep speed, starts fast then dies
So I seem to be having this problem to... I think. Our 2006 36V TXT had a new motor installed by our neighbors in 2016, new #2 wires, and 6 fresh Duracell (https://www.batteriesplus.com/batter...ic/na/sligc110) batteries from Batteries + in 2015. We purchased the cart from them June 2017 when they moved. The cart seemed to ride fine for about a month and half and then it left my wife stranded and we trailered it home. On Halloween I wound up pushing it nearly a mile to get it home because again the batteries died. After cleaning every contact, and individually charging each battery I put them all back after resting and settling at 6.42 Volts / battery. Today I took a ride and went about 1/2 mile. I had my voltmeter hooked to the batteries and noticed under load that the voltage dropped to 28.4V. Sure enough the batteries were done moving the cart after this short trip and when I stopped back at home the battery voltage came back to 38.1V then while sitting with the lights on in the driveway the voltage actually rose to 38.5!!! So what gives? Is it a speed controller maybe?
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03-15-2018, 09:26 PM | #6 |
Gone Wild
Join Date: Apr 2017
Location: SE TN
Posts: 2,209
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Re: cart wont keep speed, starts fast then dies
It sounds like the batteries but your voltages look correct. A lot of times your volt meter won't give you an accurate indication of whats going on in the battery. You need to check the specific gravity of the electrolytes in the battery. I've always hated the old timey hydrometers because they need to be temperature compensated and air bubbles give incorrect readings. Might I suggest you purchase a Battery Acid Refractometer and check your SG of the individual cells in your batteries. Here is a link on Amazon if you are interested.
https://smile.amazon.com/s/ref=nb_sb...Battery+Acid.+ |
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