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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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10-28-2018, 03:18 PM | #1 |
Not Yet Wild
Join Date: Nov 2011
Posts: 7
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Faulty Battery Meter?
Went for a ride today and cart kept getting slower until it finally died. Battery meter read 50%. When I finally got it back home, the dead battery tone came on. These batteries are two months old. Any thoughts?
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10-28-2018, 08:52 PM | #2 |
Gone Wild
Join Date: Sep 2016
Location: Northern California
Posts: 1,300
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Re: Faulty Battery Meter?
Do you have a dvm? Check your pack voltage. And you can get a meter that shows the actual value. Refer to the attached chart and you’ll always know where you’re at.
http://www.cartsunlimited.net/battery-meters.html |
10-29-2018, 07:43 AM | #3 |
Card Carrying Old Fart
Join Date: Feb 2012
Location: Kentucky
Posts: 706
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Re: Faulty Battery Meter?
I have read where the % type meters can be inaccurate. I have a digital volt meter I got from ScottyB. Inexpensive and you can get a trim plate to fit your cart. It sounds like you ran your batteries dead. I have read here to never run them below 80% SOC (State of charge) when breaking the pack in for best battery life.
http://www.cartsunlimited.net/battery-meters.html Here is my switch mounted in my key switch plate. I mounted a SOC chart next to the meter. |
10-29-2018, 10:06 AM | #4 | |
Gone Wild
Join Date: Jul 2010
Location: Peachtree City, Ga.
Posts: 2,759
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Re: Faulty Battery Meter?
Quote:
When you say batteries are 2 months old you mean all of them correct? So you have a receipt and warranty and they are new and not reconditioned. We assume they are fully charged with a functioning charger----true? |
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10-29-2018, 02:00 PM | #5 |
Gone Wild
Join Date: Jan 2013
Location: Saint Petersburg, FL
Posts: 2,089
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Re: Faulty Battery Meter?
Also, depends on how they measured 50% on your meter. A 48V pack is dead at 48v, a 36V pack is dead at 36V. You can continue going lower, but it'll damage the pack. Yes, the battery has about half of it's total capacity left, but going below 50% causes lead sulfate to form on the plates in the battery and if left uncharged these will begin to convert to hard crystals that are permanent.
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