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  1. #1
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    lithium and lead acid for starting

    I have a lead acid hooked to motor leads only and everything else hooked to lithium. Is there a reason the motor will not start? everything else works fine and even have a the blue lights to start (520c).

  2. Member 1BADAIR's Avatar
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    Dec 2014
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    OXFORD MI
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    #2
    I think everything from the engine has to be on the same batt. Clean power, ect
    2011 Ranger z521/2023 250ProXS

  3. Member
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    Apr 2014
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    SW, Ohio
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    #3
    Quote Originally Posted by 1BADAIR View Post
    I think everything from the engine has to be on the same batt. Clean power, ect
    put jumpers between batteries and see if it will run? dash and motor not on same batteries?? I would put graphs on LI-ION and motor and boat on lead acid battery
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools

  4. Member
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    #4
    Quote Originally Posted by mactlman View Post
    put jumpers between batteries and see if it will run? dash and motor not on same batteries?? I would put graphs on LI-ION and motor and boat on lead acid battery
    when I put all leads on one battery it will run.

  5. Member
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    Sep 2014
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    The Box, CA
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    #5
    There will be some you can't remove. Find out where each lead goes, including their grounds and then decide. Is there a schematic on the back lid?

  6. mikesxpress
    Guest
    #6
    Make model year of engine?

  7. Member
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    #7
    Quote Originally Posted by mikesxpress View Post
    Make model year of engine?
    2013 250 sho

  8. Member
    Join Date
    Jun 2018
    Location
    Sparta,Tenn.
    Posts
    18
    #8
    My Merc starts and runs with no problems and is hooked to lithium.
    ALL THANGSWILD TAXIDERMY