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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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11-05-2013, 08:09 PM | #21 |
Getting Wild
Join Date: Sep 2013
Location: Lake Wylie NC area
Posts: 141
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Re: 99 TXT Battery terminals keep melting
That exploded battery has me scratching my head. Thats just not common, but to be coupled with melted out battery posts......something is not correct.
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11-05-2013, 10:02 PM | #22 |
......................
Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
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Re: 99 TXT Battery terminals keep melting
The exploded battery was probably caused by the bad cable or loose connection, all it takes is a little spark to make a battery exploded, the battery could of had a short in it, it happens more than you think, your post melted because there was a loose connection or a bad cable
Here's some, it happens http://www.buggiesgonewild.com/elect...batteries.html |
11-05-2013, 10:38 PM | #23 |
Not Yet Wild
Join Date: May 2013
Location: New Port Richey, FL
Posts: 42
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Re: 99 TXT Battery terminals keep melting
Electricity takes the path of least resistance. If you're mixing old and new batteries, and with mixed capacities too- consider how the amps will flow to your motor; fast and furious through the plates of the new (less sulfated) batteries, and considerably "slower" through the layers of resistance (sulfation) on your older batts... Add to that the possibility some of these batteries are "fuller" than the others due to their different capacities... And you've created some "express lanes" for that amperage to fly through, and some "slow lanes" for it to avoid. Highly recommended to match your pack up!
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11-05-2013, 10:52 PM | #24 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: 99 TXT Battery terminals keep melting
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11-05-2013, 10:56 PM | #25 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: 99 TXT Battery terminals keep melting
Kinda like the phrase, "a chain is only as strong as its weakest link". Only accurate in a failure mode. If you have 30 feet of 6 AWG and only change out 15 feet to 2 AWG, you have STILL reduced total series resistance. Dumb, but true, 'specially if you only own enough to to half of what you should do.
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11-05-2013, 11:07 PM | #26 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: 99 TXT Battery terminals keep melting
I just reread the post I was nit-picking. I was referring to parallel circuits, after I read the first sentence, not a true series circuit.
Amperage is the same throughout a series circuit. Voltage drop will vary, but not amperage. Amps don't blast fast and furious through parts of a series circuit. Unless you consider a battery plate parts of a parallel circuit... How does electricity "pick the path of least resistance", in a series circuit, when there's only ONE path? |
11-06-2013, 12:05 AM | #27 |
Not Yet Wild
Join Date: May 2013
Location: New Port Richey, FL
Posts: 42
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Re: 99 TXT Battery terminals keep melting
Please let me explain:
I wasn't using the term "fast and furious" in a technical manner. (I was simply trying to illustrate different degrees of resistance of the plates) My apologies :0 Nor was I using the terms "express lanes", "slow lanes", "fuller", and "slower" in a technical manner. ;P Yurtle: do you think the exploding batteries mentioned could've been caused by being REVERSE charged by the other (higher capacity) batteries? |
11-06-2013, 12:44 AM | #28 |
Not Yet Wild
Join Date: Aug 2013
Posts: 37
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Re: 99 TXT Battery terminals keep melting
LOL I hear that! Thanks.
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11-06-2013, 07:00 AM | #29 | |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: 99 TXT Battery terminals keep melting
Quote:
As far as the 'sploded battery, I have no clue. Could have been hydrogen turning into water, which does so quite excitingly. Otherwise, could have been something internal, which caused it to heat up, though I'd think the fill caps would have vented any slow build-up of pressure due to heat. I'm an "expert" in some explosive events, but not batteries. |
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11-06-2013, 07:43 AM | #30 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: 99 TXT Battery terminals keep melting
Since I'm in a nit-picky mode, I feel I should clarify my post #25 above. I did caveat my statement as a non-failure example, but many of us push our buggies way beyond the failure mode. I killed two solenoids and an FNR, so I didn't mean to imply that we should ignore the weakest link in a chain. I was merely trying to convey that to be 100% accurate, given perfectly good cables, it never hurts to only upgrade some of them, if that's all you can afford, or if you happen to have some "free" cable lying around collecting dust. You won't necessarily see any performance difference, but you will have eliminated part of your resistive losses (heat).
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