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Electric Club Car Electric DS, and Precedent golf cars |
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03-21-2016, 07:18 PM | #1 |
Not Yet Wild
Join Date: Feb 2007
Location: Zephyrhills,FL
Posts: 36
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Cart stalls out under heavy acceleration
Hi guys need some help...
I have a 2000.5 DS 48 volt cart that I put together about 9 years ago. Everything went perfect for 9 years. About a year ago my batteries finally died and needed to be replaced. So i finally got around to replacing the batteries a couple weeks ago. Got 6 brand new Trojan 875's. Put the batteries in and nothing so after troubleshooting my solenoid had gone bad,so I replaced it with the same one that was on it. All is good now solenoid clicks and runs. The problem that I am having is when I accelerate heavy when I push the petal to the floor the cart stalls out and my battery gauge jumps all over the place.. if I slowly push down on the petal the cart accelerates smooth. I have 4 gauge cables, heavy duty forward reverse switch, upgraded solenoid, either 400 or 700 amp controller (can't remember ), and high speed motor. Any suggestions? Thanks in advance, Chris |
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03-21-2016, 07:28 PM | #2 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Cart stalls out under heavy acceleration
Measure Your battery voltages individually.
A common mistake is to accidentally run the positive wire from the charger receptacle to the wrong battery. If that wire is not connected to the pack positive, You will not charge the first battery and it could fail under heavy current demand. |
03-21-2016, 07:35 PM | #3 |
Not Yet Wild
Join Date: Feb 2007
Location: Zephyrhills,FL
Posts: 36
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Re: Cart stalls out under heavy acceleration
I get 8.3 volts at each battery.. the charger lead is attached to the same positive terminal as the large positive cable going to the solenoid..
Is that correct? |
03-21-2016, 07:41 PM | #4 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Cart stalls out under heavy acceleration
That is correct, but 8.3v is low if You just charged the cart.
What is the total pack voltage? As long as it is close to 50v You don't have any battery wired backwards. You can reset the OBC by disconnecting the pack negative cable for more than 10 minutes. After You connect the pack negative back, put the cart to charge and check the voltage in the morning. You should have close to 51v when You measure the pack. |
03-21-2016, 07:46 PM | #5 |
Not Yet Wild
Join Date: Feb 2007
Location: Zephyrhills,FL
Posts: 36
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Re: Cart stalls out under heavy acceleration
Ok..i will try that... when I checked the pack today I had 50 volts. Tomorrow I will try to reset the obc and try that..
To me it acts like I am losing voltage since my gauge jumps all over the place. Thanks for the suggestions... |
03-21-2016, 07:55 PM | #6 | |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: Cart stalls out under heavy acceleration
Quote:
Keep in mind that 50 volts is ONLY 80 % state of charge.... |
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03-21-2016, 08:23 PM | #7 |
Old Sky Soldier
Join Date: Dec 2011
Location: Kentucky
Posts: 3,881
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Re: Cart stalls out under heavy acceleration
Bad connection somewhere. Check all cable ends. Make sure you tightened all the battery nuts.
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03-22-2016, 01:25 PM | #8 |
Not Yet Wild
Join Date: Feb 2007
Location: Zephyrhills,FL
Posts: 36
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Re: Cart stalls out under heavy acceleration
Now that I think of it ......the few minutes that the cart ran after I installed the new batteries before the solenoid took a crap on me it didn't stall out the way it is now...
Is it possible that my new solenoid would do that? Can I bypass the solenoid for testing purposes and see if it stops? I checked the total pack after charge all night and get 51 volts.. I have not had a chance to take any readings under acceleration yet.. |
03-22-2016, 02:11 PM | #9 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,183
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Re: Cart stalls out under heavy acceleration
You almost certainly either have a bad solenoid or a bad connection.
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03-22-2016, 02:58 PM | #10 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Cart stalls out under heavy acceleration
On Your first post You said the "battery gauge" was jumping all over the place.
If You have that "gauge" connected to the pack, then a bad solenoid cannot cause that voltage reading. The problem would have to be: 1) Weak Batteries.You already tested #1 and the batteries charged to 100% SOC. IF the problem is a poor/loose connection between the batteries, it will cause the connection to heat up. You can drive the cart for a while and then just feel the temperature in all of the cables and connections. If Your battery gauge for some reason is connected to the solenoid, then you should also feel that connection for heat. If none of the connections are heating up, You will need to check the voltage in each battery individually while driving to see if one (or more) of the batteries is dropping under load. |
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