Marine charger question

  • Ray Gylsen
    Glenwood,Mn
    Posts: 215
    #1848060

    If I have a two bank charger can I charge just one battery if I need to. What I’m thinking about is maybe using the charging system on the boat to charge a different marine battery.

    Brian Klawitter
    Keymaster
    Minnesota/Wisconsin Mississippi River
    Posts: 59992
    #1848073

    You’ll almost need to look at the directions and what the manufacturer recommends. It could go either way and without knowing the brand and model, it would just be a guess and you could end up short a bank. )

    Ron
    Victoria, mn
    Posts: 810
    #1848216

    Not sure what you’re going for here, but why would you NOT use both banks? Connecting both would assure that both batteries are fully charged. If one battery doesn’t need charging, most chargers would switch that capacity to the battery that is low.

    Ray Gylsen
    Glenwood,Mn
    Posts: 215
    #1848437

    What I was talking about Ron was to charge not the two batteries but the one for cranking over the engine.Only one battery for that.

    Dennis Williams
    Apple Valley, MN
    Posts: 244
    #1848438

    Pretty sure I get what you are trying to do. If you are disconnecting from one battery and charging a different battery there is no problem. Each bank is separate.

    ClownColor
    Inactive
    The Back 40
    Posts: 1955
    #1848477

    I need a battery connected to ALL banks of my charger for it to work. I can’t have 2 batteries connected to my 3 bank charger. But as Brian said, each charger is different and it WILL say what u can do in the manual.

    Ray Gylsen
    Glenwood,Mn
    Posts: 215
    #1848483

    Ok that makes sense. Appreciate the answers. I sometimes have a difficult time explaining it in words. It makes sense in my head though, just doesn’t come out right.

    biggill
    East Bethel, MN
    Posts: 11321
    #1848489

    I find it very odd that a charger would not charge unless all banks are connected to a battery. I would not buy one like that.

    If say a bank dies, a connection comes loose or a battery fails, it won’t charge the other batteries? That’s a recipe for disaster on so many levels.

    ClownColor
    Inactive
    The Back 40
    Posts: 1955
    #1848492

    I find it very odd that a charger would not charge unless all banks are connected to a battery. I would not buy one like that.

    If say a bank dies, a connection comes loose or a battery fails, it won’t charge the other batteries? That’s a recipe for disaster on so many levels.

    Unfortunately that wasn’t really an option not too long ago for a lot of chargers. These chargers are getting smarter. Before they begin charging, they “inspect” or test the battery. Some chargers figure out which bank is the lowest and will charge that battery the hardest. If you left a bank open, it wouldn’t be able to complete its test cycle and therefore couldnt figure out how to charge.

    I noticed the newest cabelas advanced angeling charger NOW allows you to hook up all extra bank leads to another battery. So, if you have a three bank charger but only two batteries, you can now connect two banks to one battery…but all still need to be connected for the charger to work.

    biggill
    East Bethel, MN
    Posts: 11321
    #1848494

    I noticed the newest cabelas advanced angeling charger NOW allows you to hook up all extra bank leads to another battery. So, if you have a three bank charger but only two batteries, you can now connect two banks to one battery…but all still need to be connected for the charger to work.

    Still doesn’t address any of my concerns above. Good point though. Read the specs or the manual before you buy.

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