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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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09-03-2022, 05:05 PM | #21 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Hi Victor,
Those batteries just needed balancing, they weren’t unsafe. Cheers Pat. |
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09-03-2022, 05:16 PM | #22 |
Gone Wild
Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,204
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Just MHO, but judging from the looks of everything else on that cart, the obvious rusting and corrosion, and electrical connections that did not appear to be maintained at all, I think getting your money back was the right move.
Buy something that doesn't look like it's been underwater for a few years. |
09-03-2022, 05:30 PM | #23 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,122
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Re: Lithium battery suddenly reverse polarity and changed voltage!
A well maintained used cart should be very clean - an obvious thing to do if you want to sell a cart is to clean it up!
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09-03-2022, 06:05 PM | #24 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Those particular batteries were not dangerous at all. The way it was wired was pretty dangerous though. It could’ve been fixed but it may not be a bad idea now for you to get something cleaner…
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09-03-2022, 09:17 PM | #25 | |
Not Yet Wild
Join Date: Mar 2018
Location: Texas
Posts: 40
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Quote:
Regardless, all the comments on here made me uneasy about keeping it. Especially the part about how to charge it. It only had the original EZgo charger for lead-acid batteries. A new charge for Lithium was gonna run like $300, and Allied was not returning my phone calls. One of the selling points to me by the owner was the Lithium batteries which he claimed cost him $1500 and had a 10-year warranty. But then I find out the cart is wired wrong, it did not come with the proper charger for the batteries, and one of the batteries is failing, and the manufacturer is not taking calls. Yeah, time to bail. The guy said he had another buyer if I decided I did not want it, so I took him up on that offer. |
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09-03-2022, 10:47 PM | #26 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,122
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Re: Lithium battery suddenly reverse polarity and changed voltage!
I think you made the right decision. I don't like Allied batteries and good luck getting them to honor their ?? 10 year warranty. Good lithium packs have a BMS that keeps the whole pack in balance. The Allied batteries have separate BMS per 12V and they have no way to keep all of them in balance. Yes they work but far from an ideal solution.
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09-04-2022, 11:38 AM | #27 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Definitely the right move. Lithium batteries have different charge requirements than lead acid. 2 bad things about the seller are obvious and you chose the best solution.
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09-04-2022, 04:25 PM | #28 | |
Gone Wild
Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,204
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Re: Lithium battery suddenly reverse polarity and changed voltage!
Quote:
The French are good at wine & crepes…other than that the words “French” and “Engineer” in the same sentence is an oxymoron. |
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09-04-2022, 08:46 PM | #29 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: Lithium battery suddenly reverse polarity and changed voltage!
I do like Allied lithiums, but charging them with a FLA charger is a terrible idea. Hopefully the seller knows that.
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09-04-2022, 11:02 PM | #30 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Lithium battery suddenly reverse polarity and changed voltage!
I don’t think there’s anything inherently wrong with the Allied lithiums, just that it’s a bad idea to use 12v lithium batteries of any brand in a cart. Also that general purpose lithium batteries like those Allied won’t have the high current demand capability of a cart specific battery.
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