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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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04-18-2017, 10:42 AM | #1 |
Getting Wild
Join Date: Jun 2014
Posts: 100
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2017 RXV battery or controller problem
Hi, My Rxv doesn't get a lot of use, just one round of golf a week...maybe.
I bought it in the beginning of '14 and it had the 4 US batteries in it. Recently I would go about 1/2 mile from a full charge and the battery meter would drop to 3/4 charge and run sluggish. When plugged into the charger, the charger would flash red about 5 times, then switch to green flashing...charging mode. The dealer told me that the batteries are probably old so he converted it to 6 trojan 875t2 batteries (for $1400) Now it does the same thing, I make it about 3/4 a mile and the charge meter drops to 3/4 full and it loses power. I called the dealer and of course he said he tested the old pack and it was "bad", I am not sure that I believe that. He said the charger may be bad, the controller may be bad or the gage may be bad. I put in a brand new gage last week so I don't think that is it. Any ideas??? signed, super frustrated!!!!! |
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04-18-2017, 11:06 AM | #2 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: 2017 RXV battery or controller problem
Quote:
Since you have the same charger and new batteries, the problem may be with your charger not fully charging your batteries. That can ruin a new set of batteries due to sulphation. |
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04-18-2017, 01:14 PM | #3 | |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: 2017 RXV battery or controller problem
Quote:
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04-18-2017, 04:03 PM | #4 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: 2017 RXV battery or controller problem
Quote:
I just wanted to explain that the SOC guage on an RXV dash is not a standalone SOC meter. It's really just a display for the controller to display its calculated SOC on. Bob |
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04-18-2017, 05:10 PM | #5 |
Getting Wild
Join Date: Jun 2014
Posts: 100
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Re: 2017 RXV battery or controller problem
I ran it again today and the meter showed in down 1/4 after 20 minutes of running.
The dealer tells me that everything is probably fine and the controller may not be reporting correctly to the meter and that over time, that should fix itself. That said, I do have a meter and will let it charge up. Measure the pack, run it till it is showing low and measure pack charge again to see the difference. |
04-18-2017, 07:42 PM | #6 |
Getting Wild
Join Date: Jun 2014
Posts: 100
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Re: 2017 RXV battery or controller problem
So, I just ran the cart around 18 holes, not golfing but driving on the cart path at the course.
When I left the pack was at 51.50 and when I got back the meter again showed 3/4 charge and the pack was at 49.10. The total driving time was 30 minutes. Is this sounding correct for a new pack or is something sound wrong? thanks!! |
04-18-2017, 08:44 PM | #7 | |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: 2017 RXV battery or controller problem
Quote:
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04-18-2017, 09:12 PM | #8 |
Getting Wild
Join Date: Jun 2014
Posts: 100
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Re: 2017 RXV battery or controller problem
teecro- that was immediately after unplugging it. Ill let it charge tonight and unplug in the morning and let sit. Ill report that finding. Thanks!
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04-18-2017, 10:03 PM | #9 |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: 2017 RXV battery or controller problem
Thought so... Your voltage after 30 minutes use does sound low. I'm betting your charger is not doing a good job...
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04-19-2017, 03:27 AM | #10 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: 2017 RXV battery or controller problem
Again, the meter is only a "messenger" of what the controller determines the battery SOC to be. And the Rxv is very picky of good batteries, or any batteries. 99% of the time it's not the meter as the problem. Also realize that lead batteries never deliver "as advertised" performance when new (or otherwise, but that's a marketing problem we are trained to accept, different topic). It takes 50-100 cycles to reach their "rated capacity". (use-charge-use). Yep, it's crazy, but it's how it goes, it's a characteristic of the lead battery. Overall, I would be suspect of the charger first (the original QE charger is garbage). Get a good charger. Try Dpi from ScottyB. I'm not a BGW sales trumpet, I have seen so much trouble with new-style OEM chargers being junk. Delta-Q got a bad name for even making those things (the way ezgo specified them).
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