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  1. #1
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    Question MK charger problems

    My '14 518c is having issues with my 4 year old charger on a 2 year old Duracell AGM battery. The charger will start out like normal but will cycle to a red light and will stay red for a short time and back to yellow and will continue to do this. I put it on another bank and it did the same thing. Took the battery back to where I bought it and load tested it and charged it up. Load test and charged up with no problem. Put it back in the boat and the same thing, the red light never blinks.
    Do I need a new charger or is there something else I can check?

  2. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    Jun 2004
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    #2
    Check the fuse.
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  3. Member
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    #3
    All fuses are good.

  4. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    Jun 2004
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    SW Indiana
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    #4
    Call MK.
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  5. Member
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    #5
    Thanks

  6. Member carolinagreenhead's Avatar
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    May 2013
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    Greenville, SC
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    2,400
    #6
    I had one bank completely go dead on my 2015 MK. I called Minn Kota and they told me the only thing I could do was replace the charger.
    2021 Phoenix 721 Pro XP

  7. Member
    Join Date
    Jan 2013
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    Westerly,RI
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    #7
    I had a issue once with MK 330D. Battery wasn't charging and was getting the red and yellow lights and the leads were getting warm.

    In my case i put new connectors the leads and it was fine after that. See if your leads are getting hot while charging.