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  1. #1
    Join Date
    Jan 2010
    Location
    Milwaukee, Wi
    Posts
    263

    Default How long run stock stereo on battery?

    Been wondering about this...

    I have an 08 outback with the Kenwood stereo (6 speakers, amp, and no sub.) and the interstate marine cranking battery. How long do you think I can play the stereo at a descent level before it would drain the battery? I would like to have an idea before I jam out on the lake for 2 hours without restarting the boat. Ballpark numbers is all I'm looking for.
    08 Outback
    82 American Skier

  2. #2
    Join Date
    Apr 2008
    Location
    California
    Posts
    2,840

    Default

    There's a lot of variables involved, mostly how much power the amp draws, the condition of the battery and the level of play and are you fully recharging the battery between plays. The harder you work the amp the more power it will draw. Personally i wouldn't be caught dead with a stereo/amp setup and no second battery to ensure i get home.
    2007 Mobius LSV

  3. #3
    Join Date
    Feb 2006
    Location
    Birmingham
    Posts
    1,166

    Default

    I always have a marine jumper pack fully charged in the boat just in case. I only have one battery so the jumper is a must!!! I have not killed my battery yet from just floating and listening to tunes.

  4. #4
    Join Date
    Jan 2008
    Location
    Keuka Lake, NY
    Posts
    5,986

    Default

    if your playing cd then start every couple hours if its an Ipod should not seem to matter much. I never had mine drain down, but the jumper pack is alway a sound idea
    A Day at the Lake...Priceless
    A Day in Powder...Endless


    Joe V
    2012 Möbius XLV~ Loaded & Exiled
    2007 Outback V ~ sold

  5. #5
    Join Date
    May 2009
    Location
    Carlton Oregon
    Posts
    6,064

    Default

    I tested this theory last year because i wanted to know. Basicaly you just start in the AM turn it up to what ya want and let it play. Thats the only way to truly know with your set up. Sure it takes a bit but you know for sure. Last year mine went for 13 hours with the cabins and the 700.5 playing with the sub on. I kept it at a decent volume as not to piss off my neighbors but i worked in the yard and garage all day and let the jams go.

    The sub shut off and thats when i knew the battery was weak.
    Malo <--- Means--Evil or Mean One. This explains a lot.
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  6. #6
    Join Date
    Jan 2008
    Location
    Tallahassee, FL
    Posts
    11,389

    Default

    I don't think the question was how long the music would play but how long he can play and still get the boat started.
    My Mom said I'm not allowed to get wet!
    2008 LSV
    2000 Outback LS (sold)
    Exile Tunes
    PWI
    LLTR!!!!!!!!



  7. #7
    Join Date
    Jan 2010
    Location
    Milwaukee, Wi
    Posts
    263

    Default

    Cool, thanks guys. I think my battery died over night because yesterday I tried turning on the stereo and nothing... had no power to anything. I would say that I played about 4 hours worth of music on it but most of that time was 30 degree weather over the winter. Now, I have no idea how charged the battery was when I bought the boat and I'm hoping it just wasn't fully charged. Weird thing is that when I played the stereo the other night it seemed fine but then the next day I went to turn it on and it was completely dead.. I would think there would be signs of it dying. hmm..
    08 Outback
    82 American Skier

  8. #8
    Join Date
    Jan 2008
    Location
    Keuka Lake, NY
    Posts
    5,986

    Default

    I guess it would be a more technicall question. How low can the volt meter go before the boat wont start?

    I defer to the electrical gurus. for 40 bucks buy a jumper.

    JV
    Last edited by jmvotto; 03-18-2010 at 08:47 PM.
    A Day at the Lake...Priceless
    A Day in Powder...Endless


    Joe V
    2012 Möbius XLV~ Loaded & Exiled
    2007 Outback V ~ sold

  9. #9
    Join Date
    Jan 2010
    Location
    Milwaukee, Wi
    Posts
    263

    Default

    Turns out the battery is not dead. I have power when i turn the ignition to the "on" position but none of the accessory switches are getting power. No blower, stereo, nav lights etc... What gives? Think it's a fuse somewhere?

    Thanks gents.
    08 Outback
    82 American Skier

  10. #10
    Join Date
    Jan 2010
    Location
    Milwaukee, Wi
    Posts
    263

    Default

    ahh, just figured it out. It was the thermal circuit breaker that had popped out.
    08 Outback
    82 American Skier

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