Charging batteries

rnhrtfan · 09-23-2017, 01:54 PM

Ok, so I picked up my cart last weekend which has been setting for several years... batteries physically look to be good but are too dead to get much of an idea (about 4V each)... I have been told I need to charge them up individually before the club car charger will recognize them and start charging them... can I get some input if that is correct and I so ideas on charging them

scottyb · 09-23-2017, 02:23 PM

These batteries may be too far gone to be much good but, they come up enough to let you get a ride and let you know if the cart works.
Assuming 6/6v batteries. Use a 12v car charger to get them started. Disconnect nothing to do this. Check that the battery water is slightly above all the lead plates.
Begin by connecting the charger positive to the (+) post that has a cable NOT connected to another battery. This is the main (+). Put the charger negative on the - post of the next battery. If you have a voltmeter and know how to use it, you should read about 8v between these 2 posts with the batteries in their 4v state. Charge at 20 amps until the pair reach 14v. Move the charger to the next pr and repeat. Finally do the last pair and with your meter check on the first pair.... if these 2 have already fallen below 12v, well that aint good.
At some point after the last pair start to come up around 12v plug the cart charger in (with the 12v still charging) if the cart charger kicks on remove the 12v charger and let it charge .... wait not until you are ready to ride but until the charger stops. If 16 hours passes and charger has not stop you might pull the plug and see what you get.

rnhrtfan · 09-23-2017, 05:17 PM

Thanks Scottyb!

rnhrtfan · 09-24-2017, 10:57 AM

Well charged the batteries for about 12 hours and they never budged off of about 4.3 volts each... I'd say they are toast

Golf cart guy · 09-24-2017, 01:38 PM

Your better off jumping the charger as that will try to charge the entire set and at a much higher amp rate.

rnhrtfan · 09-24-2017, 03:06 PM

Quote:

Originally Posted by Golf cart guy

Your better off jumping the charger as that will try to charge the entire set and at a much higher amp rate.

Explain?

Golf cart guy · 09-25-2017, 08:13 PM

Just jump the relay inside the charger and it will be on all the time. Charge the batteries for 10-15 minutes then hook it up back normal and let it charge till it shuts off. This time of the year for me, I do 15 to 20 a week. Its simple and gets the job done way bettery than trying to charge 6 batteries individually.

teecro · 09-25-2017, 08:17 PM

Quote:

Originally Posted by rnhrtfan

Explain?

...

09-23-2017, 01:54 PM	#1
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22	Charging batteries Ok, so I picked up my cart last weekend which has been setting for several years... batteries physically look to be good but are too dead to get much of an idea (about 4V each)... I have been told I need to charge them up individually before the club car charger will recognize them and start charging them... can I get some input if that is correct and I so ideas on charging them
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22

09-23-2017, 02:23 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Charging batteries These batteries may be too far gone to be much good but, they come up enough to let you get a ride and let you know if the cart works. Assuming 6/6v batteries. Use a 12v car charger to get them started. Disconnect nothing to do this. Check that the battery water is slightly above all the lead plates. Begin by connecting the charger positive to the (+) post that has a cable NOT connected to another battery. This is the main (+). Put the charger negative on the - post of the next battery. If you have a voltmeter and know how to use it, you should read about 8v between these 2 posts with the batteries in their 4v state. Charge at 20 amps until the pair reach 14v. Move the charger to the next pr and repeat. Finally do the last pair and with your meter check on the first pair.... if these 2 have already fallen below 12v, well that aint good. At some point after the last pair start to come up around 12v plug the cart charger in (with the 12v still charging) if the cart charger kicks on remove the 12v charger and let it charge .... wait not until you are ready to ride but until the charger stops. If 16 hours passes and charger has not stop you might pull the plug and see what you get.

09-23-2017, 05:17 PM	#3
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22	Re: Charging batteries Thanks Scottyb!
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22

09-24-2017, 10:57 AM	#4
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22	Re: Charging batteries Well charged the batteries for about 12 hours and they never budged off of about 4.3 volts each... I'd say they are toast
rnhrtfan Not Yet Wild Join Date: Sep 2017 Posts: 22

09-24-2017, 01:38 PM	#5
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: Charging batteries Your better off jumping the charger as that will try to charge the entire set and at a much higher amp rate.

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09-25-2017, 08:13 PM	#7
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: Charging batteries Just jump the relay inside the charger and it will be on all the time. Charge the batteries for 10-15 minutes then hook it up back normal and let it charge till it shuts off. This time of the year for me, I do 15 to 20 a week. Its simple and gets the job done way bettery than trying to charge 6 batteries individually.

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