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  1. #1
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    Lithium battery charging question

    Considering running 2 12v 100ah trolling motor batteries. When I ran agm’s, I would use a 24v charger to charge both batteries in series- worked well.
    can the same be done with Lithium?? my guess is yes, but can’t find much info on it.

  2. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #2
    Likely not. Lithium batteries as used in boats have a BMS that controls charging. Though some might handle a single charger, I’d bet against it.
    If you have integrity, nothing else matters. If you don't have integrity,
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  3. Member
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    #3
    Ask the people you get your batteries from,but unless it is a 24 volt lithium battery you will need a 12 volt charger circuit for each one as stated above. Bob

  4. Member
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    #4
    There are 24v lithium batteries available.

  5. Member
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    #5
    And that is the proper setting for a 24 volt charger. Maybe not that 24 volt charger. Always charge lithium with a charger that is approved by your Battery mfr., who decides if your warranty is still in affect after using it. It is a large investment,use the right charger. Bob

  6. Member
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    #6
    Update- heard back from manufacturer, in their opinion, charging the 2 12v Lithium’s with a 24v charger set up with a lithium profile would work fine.
    Not trying to argue with anyone, I just like to know all of my options.
    thanks for all of your input!

  7. Member
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    #7
    No arguing. Main point was to check with the folks that will decide to replace your battery or not. Bob
    PM sent.

  8. Member
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    #8
    All good! Knowledge is power, I’m always willing to learn, appreciate your feedback, and PM sent.