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Thread: Battery question...

  1. 10-23-2019, 02:50 PM #1
    The Country Toad's Avatar
    The Country Toad
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    Default Battery question...


    Anyone feel free to move this if needed and as I'm writing this I'm thinking I should look at the main index to see if there's an answer to this but I've never been smart like that...
    I've got a one trolling motor battery getting hot when I charge everything. Right now it's only reading 6v but I was gonna buzz this by y'all and see if you thought the same thing I do...which is that it's going bad. It's got good water in it and I can't find a place at all where I think something is crossed. Got an onboard charger that's a couple years old. It's a promariner triple charger.

    Thanx all!
    Brad

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  2. 10-23-2019, 03:41 PM #2
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    How many amps is the charger pushing?

    How hot is hot?

    Are the batteries the same?

    I would first remove all wires from the batteries and inspect the terminals on the wires. I have seen them corrode inside the insulation.

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  3. 10-23-2019, 08:52 PM #3
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    Also check the output of the charger and see how many volts each battery is getting.

    It's likely a battery with a short in it and hot batteries can explode, so don't push it.
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  4. 10-24-2019, 04:51 AM #4
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    Mike1234
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    I had one do that and was told it was a bad cell in the battery. Not sure if that is what it was I just replaced it. Didn’t want to take a chance on it exploding in the boat next to gas tank.


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  5. 10-24-2019, 05:04 AM #5
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    Sounds like a couple of shorted cells.
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  6. 10-24-2019, 05:12 AM #6
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    Quote Originally Posted by DockShootinJack View Post
    Sounds like a couple of shorted cells.
    Yup. I agree.
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  7. 10-24-2019, 05:31 AM #7
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    Don’t fool with it. If it’s getting hot it is shorted. Pull it and replace it.
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  8. 10-24-2019, 05:34 AM #8
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    Quote Originally Posted by Cray View Post
    Don’t fool with it. If it’s getting hot it is shorted. Pull it and replace it.
    No sense in melting down a battery and potentially causing a fire
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  9. 10-24-2019, 07:03 AM #9
    Slabprowler
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    Had one of my 3 doing that a couple weeks ago getting hot enough to smell the acid! They were almost 3 years old so I did the no no that everyone says don’t do ! I replaced the bad ONE and we will see how the other hold up!
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  10. 10-24-2019, 08:16 AM #10
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    Mine are 2013 model batteries. I hope to make it until spring before replacing them. The new more efficient trolling motor should help with that
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