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  1. #1
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    2 volts versus less than 1 volt

    Just about every trip something new. LOL... Well at least it keeps me busy.

    Riddle me this: 2 volt drop when I operate my Bob's jack plate in the water. Less than a one volt drop when operated dry.

  2. Member lpugh's Avatar
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    #2
    When running or at rest or both
    If on a charger at home that would reduce the drop some
    Thank You Leon Pugh

  3. Member
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    #3
    Yeah I wish it was that simple Leon. It was not a on a charger.

  4. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #4
    Quote Originally Posted by tomloans View Post
    Just about every trip something new. LOL... Well at least it keeps me busy.

    Riddle me this: 2 volt drop when I operate my Bob's jack plate in the water. Less than a one volt drop when operated dry.
    How is the drop being measured?
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  5. Member
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    #5
    Quote Originally Posted by CatFan View Post
    How is the drop being measured?
    By the gauge on the console. Both were measured from the same gauge. It is odd. When in the water, it appears like it is shorting somewhere.

  6. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #6
    Quote Originally Posted by tomloans View Post
    By the gauge on the console. Both were measured from the same gauge. It is odd. When in the water, it appears like it is shorting somewhere.
    I’d test with a meter directly on the battery terminals to confirm you aren’t seeing an artifact of gauge wiring.
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  7. Member
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    #7
    Quote Originally Posted by CatFan View Post
    I’d test with a meter directly on the battery terminals to confirm you aren’t seeing an artifact of gauge wiring.
    +1. Or a connection that is not sufficient, whether terminal, lug, or something else.
    I had my jackplate stop working after 16 years, everything measured good with a meter until power applied to raise or lower. Turned out to be the factory terminal end at the battery loosened over the years. I recrimped and everything OK.

  8. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #8
    +2... and really need DIRECT voltage readings at the battery.

    One of the most common things I see is improper STACKING order of the lugs and terminals at the battery. Highest load (engine cables) must be FIRST, remaining loads "largest to smallest". Stainless locknut (or stainless nut) to secure it. Do not use wing-nuts.

    If you would, please take a moment to review the Announcements at the top of the Forum, and be sure to provide the Required Info (serial number) when posting. Thanks!


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  9. Member
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    #9
    Thank you all. I will tighten as I have already cleaned with a wire brush all terminals and wire ends as well.