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Electric Club Car Electric DS, and Precedent golf cars |
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05-03-2018, 02:37 PM | #1 |
Gone Wild
Join Date: May 2018
Location: Florida
Posts: 501
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Low end shake under load
When climbing a small hill like a drive way or taking off full throttle it seems like the cart has a shutter or a shake to it.. kinda like a bad brush or a stuck brush.. but everything checks out and all the suspension is tight along with bearings
1989 club car ds, All new batteries (brute force 6v2000) new f/r switch, new cables between batteries(0g aircraft mill spec) new charge wires from port to batteries, pulled motor (D&D 170-004-0002a) apart and checked everything it looked fine, cleaned all connections and it still has a shake.. Since i have done the cables it inst as bad but when the batteries get a little bit of time on them its more noticeable.. need ideas here .. im gonna be replacing the other 7 large cables with the same aircraft cable i have between the batteries and see what happens any ideas would be helpful, im gonna be getting a new solenoid soon and possibly a controller if i have to but from what i gathered i have a high amp one on already Thanks again ! |
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05-03-2018, 03:03 PM | #2 | |
Gone Wild
Join Date: Sep 2012
Location: Chestermere, Alberta - Canada
Posts: 1,146
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Re: Low end shake under load
Shuddering under load is almost always a sign of low voltage in a series cart. Those batteries don't quite have the performance rating of their "gold standard" counterparts (Trojans). New or not - batteries can fail unexpectedly. Hook a digital voltmeter to each battery (one-at-a-time) after you have driven a couple miles. Then, go find a hill and drive up. I suspect at least one battery will dive in voltage - and you will have found your culprit.
Your statement Quote:
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05-03-2018, 03:05 PM | #3 |
Gone Wild
Join Date: May 2018
Location: Florida
Posts: 501
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Re: Low end shake under load
Ill check it out.. i just bought the batteries like a week ago and they are all april of 2018 but i will load test them.. do you think maybe because i am running 36vs on a 48 volt motor will matter? i would just think i wont get the full potential out of it.. also i know the controller is good for both 36/48 |
05-03-2018, 03:14 PM | #4 | |
Gone Wild
Join Date: Sep 2012
Location: Chestermere, Alberta - Canada
Posts: 1,146
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Re: Low end shake under load
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05-03-2018, 03:23 PM | #5 |
Gone Wild
Join Date: May 2018
Location: Florida
Posts: 501
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Re: Low end shake under load
yah everything looked good in the motor..i have only had the cart a few weeks and ive been going after anything i can think of without having to buy more batteries .. this is my first cart by the way and my buddy who i got it from has had it for the past 15 years and sat for the last 5.. when i was a kid i would see him run this thing through the sand no problems and now im trying to mimic him and its not cutting it lol .. so i guess ill stuff a 12v in series one of these days and see if it comes alive.. but until then ill keep replacing wires and little things till its all new haha
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05-03-2018, 03:32 PM | #6 | |
Gone Wild
Join Date: Sep 2012
Location: Chestermere, Alberta - Canada
Posts: 1,146
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Re: Low end shake under load
Quote:
Again, I'm not an expert - but I'm old and semi-wise. |
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05-03-2018, 03:40 PM | #7 |
Gone Wild
Join Date: May 2018
Location: Florida
Posts: 501
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Re: Low end shake under load
yes im very new at this lol i do classic cars and atvs this is a new recent hobby
ill be damned.. well guess ill spend another 120 for 2 batteries and do that.. and you say with a 12v charger i can charge the 2 separate.... so i would hook them in series by themselves and hook positive to furthest and negative to furthest then i presume ? guess that means ill have to unhook them every time i have to charge them correct unless i get a 48v charger and change the charge port? |
05-03-2018, 03:46 PM | #8 |
Gone Wild
Join Date: Sep 2012
Location: Chestermere, Alberta - Canada
Posts: 1,146
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Re: Low end shake under load
You shouldn't have to unhook - make a big series loop - with your 36v charger terminating at the 36v point (6 batteries) - and the last two batteries at the end with their own 12v charger plug & wires. Draw it on paper - you'll see what I mean. Neither charger will "see" the other.
And golf carts are never grounded to the frame - it would be dangerous. So other than connecting to your drive system - the batteries are "floating" (probably not the right term, but you get the drift). There will be no accidental welding. |
05-03-2018, 03:52 PM | #9 |
Gone Wild
Join Date: May 2018
Location: Florida
Posts: 501
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Re: Low end shake under load
well considering im no electrician i can not see what you mean .. i understand the concept in what you say and it will stop charging at 36vs but i cant picture how it would be wired.. and i know nothing is grounded to the frame i guess i worded it incorrectly
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05-03-2018, 03:52 PM | #10 |
Gone Insane
Join Date: Oct 2016
Location: Richmond, VA
Posts: 14,215
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Re: Low end shake under load
You might as well go ahead and get a 48 volt charger and a 48 volt solenoid and get the 2 new batteries before they get thrown any further out of balance with the "old" ones.
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