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Thread: Battery charger question....last one, I promise!

  1. 04-19-2021, 09:17 AM #1
    mrwillis
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    Default Battery charger question....last one, I promise!


    I have recently added a battery for my trolling motor. I have a 12/24 selectable Motorguide, and I just got done rewiring in order to get this working correctly. That being said, everything is working as it should. My question, I have a 2 bank battery charger, and I feel it should be safe/ok for me to hook each battery up to their own leads from the charger (red to positive, and black to negative....of course). The batteries are tied together with a wire from the negative of one to the positive of the other. This is why I ask. Am I right in saying that putting each of these batteries on the onboard charger, WHILE THEY STILL HAVE THE CONNECTION, will be totally safe/fine/effective in charging?

    This may sound like a dumb question, but I just want to make sure. Too much expense to have to replace if it isn't and something go wrong.

    mrwillis
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  2. 04-19-2021, 11:55 AM #2
    Central Minn
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    Yes.
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  3. 04-19-2021, 12:28 PM #3
    Atimm693
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    That is permissible for batteries of equal age and capacity, that are already connected in parallel. They will charge half as quickly, however.
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  4. 04-19-2021, 12:35 PM #4
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    The charger has independent banks so the ground tied to them will not matter.

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  5. 04-19-2021, 12:47 PM #5
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    Yes
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  6. 04-19-2021, 05:38 PM #6
    Prater4586
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    Yep, that’s the correct way to hook up the charger
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  7. 04-20-2021, 06:32 AM #7
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    Quote Originally Posted by Atimm693 View Post
    That is permissible for batteries of equal age and capacity, that are already connected in parallel. They will charge half as quickly, however.
    I think if each battery has its own charger leads they will be able to receive full charge rate even while connected.


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  8. 04-20-2021, 11:06 AM #8
    Atimm693
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    Quote Originally Posted by BroKenneth View Post
    I think if each battery has its own charger leads they will be able to receive full charge rate even while connected.


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    Yep, I misread, thought he was wanting to charge two batteries in parallel off of one bank.
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  9. 04-22-2021, 09:52 AM #9
    mrwillis
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    Quote Originally Posted by Atimm693 View Post
    Yep, I misread, thought he was wanting to charge two batteries in parallel off of one bank.
    Yeah, I want to give each battery their own bank. I tried to explain it without giving a diagram. But yes, I basically want to plug each battery up to their own bank, even though they are linked together.
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  10. 04-22-2021, 10:34 AM #10
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    Yes....That will work
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