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Thread: Boat Battery Charger

  1. #1
    Member
    Join Date
    Apr 2006
    Location
    Valdez, AK
    Posts
    223

    Default Boat Battery Charger

    I have a 28 foot boat and use two batteries. A deep cell starting battery and a 4D Battery.

    The boat lives in the Valdez Harbor in the summer. Can anyone suggest a battery maintainer/charger that works good when I plug into power at the dock?

    The boat used to have one prior to me owning it but it was removed. I have not had battery problems "yet" however I don't want to start.

    Thanks in advance.

  2. #2
    Member bhollis's Avatar
    Join Date
    Apr 2007
    Location
    Juneau
    Posts
    255

    Default

    In order to maximize your batteries' life spans and performance, I recommend one of the "smart" multi-stage (bulk, absorption and float) chargers. Some of the more popular manufacturers include Guest, Xantrex and Pro Mariner. I have a Pro mariner on my boat.

    Here's a link to an example:

    http://www.defender.com/product.jsp?path=-1|328|985|316472&id=185438

  3. #3
    Member
    Join Date
    Apr 2006
    Location
    Anchorage
    Posts
    3,246

    Default

    I agree with bhollis, you want a multi-stage (bulk, absorption and float) charger. You mention you have two different type batteries (deep cell starting battery and a 4D battery). Each battery will need a difference setting for bulk, absorption and float voltage and current for maximum performance and life of the battery.

    I would talk to each battery manufacture and find out what they recommend in charging there battery and see if you can find a charger to fit both batteries that is marine approved.

    I would also consider going to one type of battery in the future for your boat, because of all the problems using two different batteries; after the deep cell starting battery dies.

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