Wiring of Batteries for 2001 34' Sundancer

Discussion in 'Electrical Stuff' started by JByers, Oct 20, 2008.

  1. JByers

    JByers New Member

    29
    Oct 14, 2008
    Woodstock, Ontario, Canada
    340 Sundancer 2001
    6.2s 320hp
    I have a 2001 SeaRay 34'. A marine dealer installed four new batteries in the boat when I purchased it. They put in two cranking and two deep cycle batteries. The cranking batteries are between the engines, and are connected together. The deep cycles are at the back and appear to be on separate wires. I can see that the cranking batteries are connected to the port engine. Does anyone know how these are suppose to be connected? Are the deep cycles isolated to the boat systems? How is the emergency bypass connected in the system? Where does the generator tie in? Thanks
     
  2. Henry Boyd

    Henry Boyd Well-Known Member

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    In the owner's manual there are wiring diagrams that should answer all of your questions. If you don't have the owner's manual, you can download a copy in pdf format from Sea Ray.
     
  3. JByers

    JByers New Member

    29
    Oct 14, 2008
    Woodstock, Ontario, Canada
    340 Sundancer 2001
    6.2s 320hp
    I've already downloaded the owners manuals, they are gray, hard to see and jump from harness to harness. I was hoping to find someone that knew the boat. When it comes out of storage the dealer is just going to put them back in the way they where.
     
  4. fc3

    fc3 Just another eclectic geek TECHNICAL Contributor

    Nov 12, 2006
    Northern NJ
    1999 Sea Ray 330DA
    Twin 7.4 MPI (310 propshaft HP) V-drives
    Twin Mercury Marine marinized 7.4L L-29 V8s
    Cast iron block w 4-bolt mains
    Generally on the Sport Cruisers, Sea Ray parallels two batteries for house and the port engine, one battery for the starboard engine, and one battery for the generator.

    Best regards,
    Frank
     
  5. JByers

    JByers New Member

    29
    Oct 14, 2008
    Woodstock, Ontario, Canada
    340 Sundancer 2001
    6.2s 320hp
    Thanks for the info. From what I could make out of the wiring diagram, that's the way it's wired. The dealer has put a deep cycle on my starboard engine and on the generator. I'll have to move them around.
     
  6. dane507

    dane507 New Member

    65
    Apr 14, 2008
    North Carolina
    330 Sundancer 1997, Sea Eagle 810 dinghy w/6HP Johnson
    454s with V-drives
    I've had similar questions on my boat. I found out by trial and error, and playing with the battery switches, that on my 330DA, 2 batteries on the port serve to start the port engine and they also act as house batteries. The two at starboard are for the starboard engine and to start my generator. All of my batteries are starting batteries. Since I've had problems with the port batteries going dead while I'm on the hook, I decided to put deep cycles on the port and leave starting batteries on the starboard. I also routinely start the starboard first to get all batteries charging. The refrigerator, depth gauge, and GPS take a lot of "juice."

    Hope this helps...
     

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