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Unread 04-23-2012, 08:00 PM   #1
Not Yet Wild
 
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Default 99 cc over charging

I have a 99 clubcar that seems to be cooking the batteries when charging. i put my charger on the other night with the batteries at about 46.4v after about two hours i checked on it and the charger was still showing it was putting out about 8amps and i could hear the batteries bubbling...... i unpluged the charger and checked the string with my volt meter and it was pushing 57.6v.... Do i have a bad charger or a bad OBC??? And how can i test to find out??? any help would be great.

Thanks,
Jeff
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Unread 04-23-2012, 08:52 PM   #2
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Default Re: 99 cc over charging

At 46.4v, your battery pack was only 20% charged so a long charging cycle to bring them back up is to be expected, could be well over 10 hours but should be less than 16 hours . . . bubbling in the batteries, especially that low, would be considered normal as "gassing" occurs . . . late stage of charge cycle, possibly for a few hours, readings around 6 amps @ 63 volts would be considered normal as charger attempts to equalize the pack . . .


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Unread 04-24-2012, 11:13 AM   #3
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Default Re: 99 cc over charging

you have to let the charger do a complete cycle.......may take 16 hours now if it dosn,t shut off at 16 hours theres an issue but you really need to plug it in and just let it go and keep an eye on it just to make sure its gonna shut off.................................
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Unread 04-24-2012, 09:06 PM   #4
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Default Re: 99 cc over charging

ok i will give it a try, i have had it on now for about 3hrs and the voltage is at 60.8 and it is cooking fluid out of the batteries 2 of them. but i should just let it eat??
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Unread 04-27-2012, 07:34 PM   #5
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Default Re: 99 cc over charging

I am no expert on these things but I'm pretty sure that 60 volts is WAY to high... I think around 52v is a fully charged 48v pack.
Sounds like you have some sort of an electrical problem.
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Unread 04-27-2012, 09:13 PM   #6
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Default Re: 99 cc over charging

Mine gets up to 63 volts when it is in its last stages of charging. If fluid is coming out of the batteries, they may be too full.
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Unread 04-28-2012, 01:10 PM   #7
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Default Re: 99 cc over charging

yeah it sounds like they are overfull, mine has been as high as almost 64 volts while charging and as long as everything is ok just let it go till charger shuts off..............all batteries don,t act the same and i,m sure there are differences from brand to brand and age.....to many what ifs, let charger do its job...................................
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Unread 04-29-2012, 11:02 AM   #8
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Default Re: 99 cc over charging

What is the reading across the back with the charger off. A 100% charge on a volt meter should read about 50 to 51 volts.
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