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Unread 08-12-2014, 02:09 PM   #1
Not Yet Wild
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Join Date: Sep 2009
Location: NW Arkansas
Posts: 10
Default Solutions for a single low battery

2011 Precedent with original batteries (6 x 8v). I bought the cart in early July '14. It was a rental on a really nice course, so I don't believe it suffered much abuse or lack of maintenance / charging, but I don't know for sure.....

The cart performs well (15.2 mph on flat ground) and the batteries charge up normally, but here's the the most recent voltages after full charge and several hours rest time.

1. 8.45
2. 8.47
3. 8.35
4. 8.48
5. 8.46
6. 8.47

Battery 3 is always lower than all others. It has one of the four cells that shows on the low side of the "fair" range by hydrometer where the other three cells show "good" or on the line between "fair" & "good". The hydrometer isn't high enough quality to read the actual specific gravity reading.

Is there any specific action needed? Is there any real solution, or is it typical for 3+ year old batteries to begin showing some imbalance? Does the location of a battery in the string have any effect on its life?

Just trying to be proactive in keeping the entire battery pack alive as long as possible.
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Unread 08-12-2014, 05:04 PM   #2
Old Sky Soldier
 
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Join Date: Dec 2011
Location: Kentucky
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Default Re: Solutions for a single low battery

You any have lights using that battery.
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Unread 08-12-2014, 06:00 PM   #3
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Join Date: Jun 2014
Location: Sunset Bay, TN
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Default Re: Solutions for a single low battery

Can't hurt to try moving the battery out to either the number one or six position and see if the voltage comes up after a couple of charging. It's a little better than 80 % and the rest of your pack is 90 to near 100 so your really not doing too bad at all. I'd try moving it and see what happens...
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Unread 08-12-2014, 09:06 PM   #4
Getting Wild
 
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Join Date: Sep 2012
Location: Charleston SC
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Default Re: Solutions for a single low battery

Remus, My CC and EzGo do the same thing... I'm very particular with my batteries and maintaining them... they get checked every few weeks for water level, cleaned and individual battery voltages taken... Both carts experience low voltage on the 3rd battery... I rotate my batteries and move the third battery to the 6th position and the 6th battery to the 1st position.... and so on. Since doing that, I've gotten 6 years out of my Trojan batteries with plenty of life to spare... good luck.
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Unread 08-12-2014, 10:42 PM   #5
Not Yet Wild
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Join Date: Sep 2009
Location: NW Arkansas
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Default Re: Solutions for a single low battery

Quote:
Originally Posted by mrgolf View Post
You any have lights using that battery.
No lights on the cart at all. No accessories at all. It was 100% stock when I bought it. It now has a 3" spindle lift and 10" wheel w/ 20" tall tires.

It also has 1/0 battery straps, and 2 ga from batteries to the controller & OBC, and 2 ga from controller to motor.
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