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Thread: Minn Kota charger over charging

  1. #1
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    Default Minn Kota charger over charging


    I have a Minn Kota 330D onboard charger that is over charging my 2 12 volt trolling motor batteries. I checked them last night and both batteries had over 16 volts each. I checked them with everything disconnected from them. Does anyone know how much each of the charger leads should be readings.
    I may be getting older but I refuse to grow up.

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    Contact the factory for info.

  3. #3
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    Cray is offline Crappie.com 2019 Man of Year, Supermod & Moderator of the Mechanics Forum * Crappie.com Supporter
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    Leave them disconnected from charger and everything else for 24 or so. Then check and see where they are. Sounds like one could have a shorted cell.
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    I disconnected them both last night and checked them this morning and they both individually are the same as they were last night. 16.8 and 16.9 volts.
    I may be getting older but I refuse to grow up.

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    I would have checked with Minn Kota, but they don't answer the phone on the weekends.
    I may be getting older but I refuse to grow up.

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    Quote Originally Posted by RLS40 View Post
    Contact the factory for info.
    I would have contacted Minn Kota, but they don't answer their phones on the weekend.
    I may be getting older but I refuse to grow up.

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    I have never tried to charge batteries to that high a level, but I am surprised they will hold at that high a voltage .... are you sure your meter is working correctly? Maybe check a different battery to make sure.
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    Barnacle Bill is offline Super Mod and 2014 Crappie.com Man of the Year * Crappie.com Supporter
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    As mentioned, try a different meter.
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    Likes "G", NCkenner LIKED above post

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    measure a 1.5 volt battery with your meter

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    Quote Originally Posted by Barnacle Bill View Post
    As mentioned, try a different meter.
    My problem was a faulty multi meter. Thanks
    I may be getting older but I refuse to grow up.

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