Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, but..

scottyb · 07-25-2010, 11:09 AM

Woops!
See below ..........

scottyb · 07-25-2010, 11:09 AM

Watch those decimal points .... battery at 8.30 is close to 80%. Battery at 8.03 is 50%

Thanks for the info Scuba.
Cheapjeep, You have to allow for about 5% variable from one meter to another when determining these type of things...

cheapjeep2 · 07-25-2010, 11:24 AM

yes, it is was 8.3 NOT 8.03 but still weaker than the rest.

scottyb · 07-25-2010, 11:30 AM

Quote:

Originally Posted by cheapjeep2

yes, it is was 8.3 NOT 8.03 but still weaker than the rest.

IF you were to let the pack settle for 12 hours after a charge, you would see a SG difference in this battery than the others... You can try to charge this battery way up with a 12v charger under carefully controlled and monitored conditions. It may hold. Otherwise if SG readings are 20% different from cell to cell there is potentially a problem....... GL

cheapjeep2 · 07-25-2010, 11:48 AM

volts so far after about 3 hours...

pack at 55.7 ammeter at 9 amps

1 - 8.8
2 - 9.5
3 - 9.3
4 - 9.4
5 - 9.1
6 - 9.5

Thing I noticed is the volts of the pack has stopped climbing and isn't going above 55.7 to 55.9
6

TahoeDawgZ71 · 07-25-2010, 01:05 PM

It's a battery issue.. 55 volts isn't enough to make it turn off. Check the on-charge voltage of each battery separately when the ammeter is at 5 or below.

gadavis · 07-26-2010, 01:21 PM

I just went through this same scenario with a 95 DS cart. I had all the symptoms you have described and finally put in batteries to cure the problem. If you can get a dealer type load test performed on them it should point out the bad battery in the pack. Gene Davis

cheapjeep2 · 07-26-2010, 02:48 PM

Replaced the two suspect batteries and things are looking better but I am not 100% concluded on this, I have further testing to do. I needed to let the batteries settle so I drove it for 4 miles last night and left it off of the charger, for 24 hours, will drive a bit more and then put on the charger for the final test.

gadavis · 07-26-2010, 09:00 PM

I had to replace the whole set of batteries to ever get it charging correctly on the one I was dealing with. Gene

cheapjeep2 · 07-26-2010, 09:23 PM

Well guys, I am happy to report that after all this, it was indeed the two batteries that were bad, I tried to convince the owner to get a full set, but money speaks.

Thanks again for great help!

07-25-2010, 11:09 AM	#21
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b Woops! See below ..........

07-25-2010, 11:09 AM	#22
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b Watch those decimal points .... battery at 8.30 is close to 80%. Battery at 8.03 is 50% Thanks for the info Scuba. Cheapjeep, You have to allow for about 5% variable from one meter to another when determining these type of things...

07-25-2010, 11:24 AM	#23
cheapjeep2 Gone Wild Join Date: Nov 2008 Location: Peachtree City, Georgia Posts: 1,546	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b yes, it is was 8.3 NOT 8.03 but still weaker than the rest.

07-25-2010, 11:48 AM	#25
cheapjeep2 Gone Wild Join Date: Nov 2008 Location: Peachtree City, Georgia Posts: 1,546	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b volts so far after about 3 hours... pack at 55.7 ammeter at 9 amps 1 - 8.8 2 - 9.5 3 - 9.3 4 - 9.4 5 - 9.1 6 - 9.5 Thing I noticed is the volts of the pack has stopped climbing and isn't going above 55.7 to 55.9 6

07-25-2010, 01:05 PM	#26
TahoeDawgZ71 revolutiongolfcars.com Join Date: Mar 2010 Location: Golf Car Capital of The World... Augusta, Georgia Posts: 10,224	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b It's a battery issue.. 55 volts isn't enough to make it turn off. Check the on-charge voltage of each battery separately when the ammeter is at 5 or below.

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

07-26-2010, 01:21 PM	#27
gadavis Gone Wild Join Date: Feb 2008 Location: Central Georgia Posts: 264	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b I just went through this same scenario with a 95 DS cart. I had all the symptoms you have described and finally put in batteries to cure the problem. If you can get a dealer type load test performed on them it should point out the bad battery in the pack. Gene Davis

07-26-2010, 02:48 PM	#28
cheapjeep2 Gone Wild Join Date: Nov 2008 Location: Peachtree City, Georgia Posts: 1,546	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b Replaced the two suspect batteries and things are looking better but I am not 100% concluded on this, I have further testing to do. I needed to let the batteries settle so I drove it for 4 miles last night and left it off of the charger, for 24 hours, will drive a bit more and then put on the charger for the final test.

07-26-2010, 09:00 PM	#29
gadavis Gone Wild Join Date: Feb 2008 Location: Central Georgia Posts: 264	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b I had to replace the whole set of batteries to ever get it charging correctly on the one I was dealing with. Gene

07-26-2010, 09:23 PM	#30
cheapjeep2 Gone Wild Join Date: Nov 2008 Location: Peachtree City, Georgia Posts: 1,546	Re: Replaced OBC, Charger is good, good cables, Specific gravity is off the charts, b Well guys, I am happy to report that after all this, it was indeed the two batteries that were bad, I tried to convince the owner to get a full set, but money speaks. Thanks again for great help!

Similar Threads
Thread	Forum
battery with no specific gravity reading	Electric Club Car
Did I do good or not Lestronic charger	Electric EZGO
Good charger has stomped working on for my 03 CC	Electric Club Car
Specific Gravity and State of Charge	Electric Club Car