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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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01-30-2017, 06:01 PM | #1 |
Not Yet Wild
Join Date: Jan 2013
Posts: 18
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Batteries losing charge quickly
I just installed 4 new batteries on my 2008 RXV as my others were 3+ years old and beginning to go bad. The batteries are Continentals and were manufactured just this month based on the stampings.
The problem I am having is that the SOC meter is showing that they are losing their charge almost as fast as the batteries I replaced. I checked the voltage on each battery after the charger went off and they are each showing a 12.9v +/- with a total of 51.7v across the pack. Any ideas on what would be causing the drop in my SOC meter? I used to be able to drive to the course, play 18 holes, and drive home (9 miles total) and the meter would never get below 3/4 charge. Now it drops that far or more going just half that distance. I don't want to push it to see if the SOC meter is bad in fear of damaging new batteries. Thanks |
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01-30-2017, 07:21 PM | #2 |
Not Yet Wild
Join Date: Jan 2017
Posts: 7
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Re: Batteries losing charge quickly
I am having the same problem but I used US batteries instead
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01-30-2017, 09:38 PM | #3 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Batteries losing charge quickly
Quote:
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01-30-2017, 09:40 PM | #4 |
Gone Wild
Join Date: Jul 2009
Location: Lake Elsinore Ca.
Posts: 549
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Re: Batteries losing charge quickly
what type of meter do you have in your cart
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01-30-2017, 09:53 PM | #5 |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Batteries losing charge quickly
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01-31-2017, 07:16 PM | #6 |
Not Yet Wild
Join Date: Jan 2013
Posts: 18
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Re: Batteries losing charge quickly
A couple of other things I just thought of for you experts to ponder:
At the end of last summer I took the cart to an EZGO dealer to have the speed increased from 14 mph to 18 mph. At the same time I had them change the gear oil in the rear end as it was due per the maintenance schedule and to hopefully quiet the rear end down as it was making a whining noise (which I understand is common with these carts). When I got the cart back it was indeed faster and noticeably quieter so I was happy. I used cart a couple of more times before winter hit and I had begun to notice the batteries weren't holding up like they used to. Based on their age I figured they were just due for replacement which I did a couple of weeks ago. Could the 4mph speed increase and new gear oil be the cause of my problems? I drove to the course and played 18 holes today (9 miles total per gps) and when I got back the batteries were all the way down to 12.2v which according to a the chart I have is 60% charge. I would think an RXV with new batteries should be able to do at least 20 miles and it looks like I could get maybe 10 miles max. Thanks again for any thoughts or insight! |
01-31-2017, 10:40 PM | #7 |
Not Yet Wild
Join Date: Jan 2013
Posts: 18
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Re: Batteries losing charge quickly
Another new development. After plugging the cart in at 5:30 pm the charger (DPI AccuSense) shut down after only 3.5 hours and shows a complete charge.
Shouldn't it take much longer to charge the batteries from 60% than that? Maybe the charger is the issue? |
01-31-2017, 10:45 PM | #8 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Batteries losing charge quickly
You could check your pack with a dvm and compare that reading to your soc meter. At least that way you could confirm the status of your batteries.
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01-31-2017, 11:17 PM | #9 |
Not Yet Wild
Join Date: Jan 2013
Posts: 18
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Re: Batteries losing charge quickly
The voltage readings I posted above were obtained with a multimeter. Unless I am missing something I think they would be the same as what a DVM would show. The readings are pretty much in line with what the SOC gauge is displaying.
Thanks |
02-01-2017, 12:59 AM | #10 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Batteries losing charge quickly
Shoot, sorry about that, had another thread in my head and didn't review your first post.
Hope you get it straightened out. |
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