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07-10-2008, 07:48 AM | #1 |
Not Yet Wild
Join Date: May 2008
Location: The Villages, FL
Posts: 30
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48V battery question
What would you do with this situation? Tested batteries with floating balls hydrometer and got: 4-4-4-4,4-4-4-4,2-4-4-4,2-4-4-4,3-3-4-3,and 1-4-4-0.
All tested at least 8V with multimeter. All six tested about 50V. Obviously (to me) one battery is shot. Try to replace that one or what? I tried pouring in Battery Equaliser (1.75 oz) into all cells that didn't float 4 balls. It did help the one that now floats 3-3-4-3 but not the one with the dead cell. Thanks for any suggestions. |
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07-10-2008, 08:00 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: 48V battery question
Generally. I would say it is time for new batteries. Battery additives and such do not work well in the long run. The #2 cells are not good either. You have two gd. batteries. U can try a 12v charger on the weak ones to see if u can bring them back up with a hot charge (doubtful but worth a try) or....u can try to find 4 gd. used? OR take Roady's advice below Good Luck
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07-10-2008, 08:00 AM | #3 |
nimda
Join Date: Jun 2007
Posts: 13,022
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Re: 48V battery question
For the battery eqaulizer to work you will have to cycle the batteries several times. You just can't pour it in and expect it to work. I use this stuff and it works great. It doesn't tell you that on the bottle. It is a temp fix at best ....but I have one battery thats been going for a year now by using the battery equaliser. It was completely dead before I used it.
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07-10-2008, 08:04 AM | #4 | |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: 48V battery question
Quote:
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07-10-2008, 08:04 AM | #5 |
Not Yet Wild
Join Date: May 2008
Location: The Villages, FL
Posts: 30
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Re: 48V battery question
Thanks for the suggestions. I did go through about four charging cycles but I knew up front that it doesn't do magic on a bad battery. I will try to bring up the weaker ones with a 12V charge. Like you say, it's worth a try.
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07-10-2008, 08:19 AM | #6 |
Not Yet Wild
Join Date: May 2008
Location: The Villages, FL
Posts: 30
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Re: 48V battery question
12V charger cut out in less than a minute on all four questionable batteries.
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07-10-2008, 08:32 AM | #7 |
nimda
Join Date: Jun 2007
Posts: 13,022
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Re: 48V battery question
This battery that I have was a 12 volt battery. I let it boil on a high amp charge for about an hour. After that I was good to go.
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