597 Shutting off when the engine starts

  • jigs
    Posts: 163
    May 16, 2012 at 10:47 pm #1295348

    Guys, I put a new 597 ci HD with down imaging on my boat last summer. I like the unit so far, the gps is not quite as accurate as the one with an external GPS on my last boat but otherwise it has been great. When I start my boat (50 horse 2 stroke) some times it seems to cross up the graph, for instance I start the boat up quick and look at the graph and it is stuck on and will do nothing. I then have to actually unplug the unit to reset it. It only happens some of the time and never happens besides when I start the motor. I am assuming this is because I am running out of power to run the unit sometimes when I start the boat? Could it be because my battery is weak (does not seem to be weak but I guess you never know). I am not sure what I should do, as I think I have everything setup the same way I have on past boats.

    Good luck out there everyone.

    BBKK
    IA
    Posts: 4033
    May 16, 2012 at 11:01 pm #1068757

    I have heard of big motors messing up graphs, but never shutting off or freezing to the point it wont work. I would also say your battery is weak. Is it a starting battery or dual purpose? Have you had it load tested lately? You can take it to most auto parts stores and they will test it for free. I know autozone does, that is who I usually use.

    jigs
    Posts: 163
    May 16, 2012 at 11:07 pm #1068760

    It is the starting battery, I will bring it in tomorrow and get it checked out. What’s weird is the battery seems to hold a charge very well but we will see what comes out of it.

    kroger3
    blaine mn
    Posts: 1116
    May 16, 2012 at 11:41 pm #1068769

    How old is the battery? They lose there cranking amps over time and your voltage will dip to far for sensitive electronics. Get a new one and if there us room you may want to upsize it.

    Paul Heise
    River Falls, Wi
    Posts: 723
    May 17, 2012 at 12:39 am #1068793

    Quote:

    How old is the battery? They lose there cranking amps over time and your voltage will dip to far for sensitive electronics. Get a new one and if there us room you may want to upsize it.


    HBs are very sensitive to voltage drop and tend to freeze up or power down.

    mark-bruzek
    Two Harbors, MN
    Posts: 3875
    May 17, 2012 at 1:16 am #1038609

    Battery.
    What are your charging habits, and how large is your charger for the starting battery?
    Battery age?

    bigcrappie
    Blaine
    Posts: 4376
    May 17, 2012 at 2:15 am #1068812

    Try the connections, My Lowrance powered off every time I started my motor. Found about 6 connections from my battery to the unit and 2 were not crimped tight. They jumped from the main power switch to a ACC switch to my 12volt outlets then to my graph.

    nick
    Lakeville, MN
    Posts: 4977
    May 17, 2012 at 2:19 am #1068814

    Quote:

    It is the starting battery, I will bring it in tomorrow and get it checked out. What’s weird is the battery seems to hold a charge very well but we will see what comes out of it.

    fwiw my take on a battery test….
    Pass, means little, fail means it needs to be replaced. I’ve had batteries test out fine, but they were still had a needed replacement.

    jigs
    Posts: 163
    May 17, 2012 at 3:31 am #1068825

    I only have one connection from the battery to the unit, I am planning on taking it in tomorrow to see what it tests out as. It looks like the battery is fairly old (I bought the boat last year) so I may just replace regardless. I will post back on what comes of it.

    Willy Wonka
    Forest Lake, Mn.
    Posts: 161
    May 17, 2012 at 9:02 am #1068847

    My unit did the same thing. In my case it was the battery. Good luck!

    WS

    brucea
    Maplewood,MN
    Posts: 431
    May 17, 2012 at 1:58 pm #1068899

    Replace the battery.Voltage drop on the starting of the motor.

    warrior2k
    Posts: 1
    June 4, 2012 at 2:31 pm #1073456

    I had the same thing happen to me on an 898. Motor battery was brand new. Never did figure out why it was happening. I wound up hooking up smaller 12v battery that fits nicely with my trolling motor batteries. This is the kind you’d put in a scooter or 4 wheeler. It seems to work well so far.

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