Charging deep cycle batteries?

  • fish_any_time
    Champlin, MN
    Posts: 2097
    April 17, 2012 at 2:41 pm #1059717

    The problem is that usually the engine is not running at a high RPM for a long enough time to fully charge the batteries.

    Many of us use a 10-15 AMP on board charger. Once you are back to shore with a power source, just plug it in and be done with it.

    gary_wellman
    South Metro
    Posts: 6057
    April 17, 2012 at 2:59 pm #1059723

    Quote:

    The local dealer told me that a charging system off of your engines alernator would lower the life span of your deep cycle batteries. Is there a product on the market that will charge your deep cycle batteries of of your alernator and not harm your deep cycle batteries?

    That couldn’t be any further from the truth! Charging is charging, as long as you don’t over amp or over volt and as long as you charge complete, meaning you fill your battery with complete amps.

    While the alternator will supply a small charge, it probably will not be enough to fully charge. That is probably what the dealer meant…….meaning that you won’t get a full, top-off-charge.

    kroger3
    blaine mn
    Posts: 1116
    April 17, 2012 at 3:00 pm #1059724

    Its not really that they are harmed them, it is just they do not draw down far enough before charging so you are constantly just topping them off and they build a memory.

    suzuki
    Woodbury, Mn
    Posts: 19068
    April 17, 2012 at 3:41 pm #1059733

    Interesting.

    walinutz
    Cologne, MN
    Posts: 376
    April 17, 2012 at 4:10 pm #1059749

    Cool product. Never seen this before

    navigator175
    Posts: 65
    April 17, 2012 at 10:40 pm #1059896

    could you hook that up along with a 110 on board charger?

    walleyeben
    Albertville,MN
    Posts: 963
    April 18, 2012 at 2:14 am #1059973

    yup I run mine with a MK 330d

    slipperybob
    Lil'Can, MN
    Posts: 1450
    April 18, 2012 at 11:21 pm #1060269

    Quote:

    Quote:

    The local dealer told me that a charging system off of your engines alernator would lower the life span of your deep cycle batteries. Is there a product on the market that will charge your deep cycle batteries of of your alernator and not harm your deep cycle batteries?

    That couldn’t be any further from the truth! Charging is charging, as long as you don’t over amp or over volt and as long as you charge complete, meaning you fill your battery with complete amps.

    While the alternator will supply a small charge, it probably will not be enough to fully charge. That is probably what the dealer meant…….meaning that you won’t get a full, top-off-charge.

    Aren’t most trucks have something like a 120-150 amp alternator? Meaning it’s very likely to fry your marine batteries.

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