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Electric Club Car Electric DS, and Precedent golf cars |
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07-17-2019, 12:43 AM | #1 |
Gone Wild
Join Date: Aug 2018
Posts: 163
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Precedent charging question?
I just built a really clean 2005 precedent. Has 2017 US batteries in the 4-12v set up. While charging, each battery measures 14.2-14.4v individually but the pack only measures 42.6 volts?? It seems to run perfect but it’s got me a bit stumped. Anyways here a few pics before I added armrests to the rear seat.
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07-17-2019, 05:01 AM | #2 |
Old Sky Soldier
Join Date: Dec 2011
Location: Kentucky
Posts: 3,881
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Re: Precedent charging question?
Check the battery in your volt meter.
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07-17-2019, 07:02 AM | #3 |
Gone Wild
Join Date: Aug 2018
Posts: 163
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Re: Precedent charging question?
Battery in volt meter seems fine. I’me getting a solid reading testing the batteries individually? Just an oddball pack reading? Would a low volt meter battery cause that?
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07-17-2019, 07:05 AM | #4 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Precedent charging question?
It looks like you are just reading the voltage across 3 batteries, make sure your meter probes are in the pack positive and pack negative battery posts.
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07-17-2019, 07:21 AM | #5 |
Gone Wild
Join Date: Aug 2018
Posts: 163
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Re: Precedent charging question?
I’me an idiot. Just went out to the garage. Was testing last night at 1am and was foggy in the Brain I guess. Was probing the wrong post on batter #4!! I am a bit concerned the charger has been running for about 10 hrs though and batteries are bubbling pretty good? Pack is reading 58.9
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07-17-2019, 07:34 AM | #6 | |
Not Yet Wild
Join Date: Jul 2019
Location: Isle of Palms SC
Posts: 34
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Re: Precedent charging question?
Quote:
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07-17-2019, 08:32 AM | #7 |
Gone Wild
Join Date: Aug 2018
Posts: 163
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Re: Precedent charging question?
No bypass. Batteries sat for about 2.5 months not plugged in and probably 90% when I parked it for the rebuild. Is 10-12 hrs normal?
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07-17-2019, 09:02 AM | #8 | |
Bonafide Nincompoop
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
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Re: Precedent charging question?
If they were just hooked back up and this is the first charge, the OBC is preliminary charge and evaluation of the pack. It takes a bit longer than a normal charge, and it can vary depending on how discharged the pack was. Some boiling and out-gassing from the batteries is normal during the initial charge. It's not uncommon for an initial charge to run up to 12-14 hours. The OBC should time out around 16 hours.
A "normal charge" depends how far you run the cart in a day. Most people probably only need to charge 6-8 hours after driving the cart. Quote:
If you bypass the OBC you need to buy a smart charger. The original charger that comes with the cart has nothing inside to tell it to turn on or off, it is only a power supply device. The OBC in the cart controls the on/off and controls the charge current (Amps) that comes out of the charger. Using a stock Club Car charger without the OBC will charge at full amp output and it will NOT turn off. It will literally boil your batteries to death. |
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