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Diesel 6-71

Discussion in 'Engines' started by Milka, May 7, 2020.

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  1. Milka

    Milka New Member

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    Holy canoli. According to west marine $700 per battery x 5= $3,500 before tax.

    Anyone here made 18650 battery power walls successfully for their boat? I think I can make a power wall for a 3rd of the price.

    Thoughts?
  2. Capt Ralph

    Capt Ralph Senior Member

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    Satsuma, FL
    What west marine batteries you looking at?

    Cranking?

    You got me. A battery power wall? Switch panel?
    Battery bank?
    U S Swamp spoken here...

    Pile of laptop batteries?
  3. cleanslate

    cleanslate Senior Member

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    Get a price from NAPA auto parts ..
    Look the batteries up on line .
    That’s a high price .
  4. Capt Ralph

    Capt Ralph Senior Member

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    High price for high priced batteries.
    Not sure what he is trying to do. I'm afraid he is looking to solar stuff.
  5. Milka

    Milka New Member

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    Crank my engine and run my bilge pump when engine is off so yes solar stuff

    DIY (18650 type of batteries) power walls were invented as a response to Tesla Power walls

    The batteries west marine was showing me was 4D AGM

    My boat has 5 dead 4D batteries. My engine requires 1,000 Cold Cranking amps I believe
  6. DOCKMASTER

    DOCKMASTER Senior Member

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    AGM batteries are fantastic.However, they are expensive compared to typical flooded batteries. If you are just starting mains and running a bilge pump, and on a tight budget, you don’t need AGM’s. You also shouldn’t buy batteries from WM in my opinion. Much better prices out there as others have already mentioned.
    Be careful with power walls and other Lithium Ion batteries. They have great applications but not all are good for starting batteries as you may not get the cranking amps. You also need specific chargers and I doubt the alternators on the old Jimmy’s will do well with Lithium batteries.
  7. Milka

    Milka New Member

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    Thanks. This is much appreciated.
  8. LM Viking

    LM Viking Member

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    Michigan
    I have 2 banks of 3 group 31 batteries paralleled in my 44 Viking with DD 6-71 TIBs. They handle starting and house with no problem.
    I do have a 60 amp battery charger.
    I needed them all replaced last summer and the guys that store and maintain my boat got them at a local auto supply.
    They are commercial grade batteries and they were about $125 each.
  9. Milka

    Milka New Member

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    Thanks. How long did that setup work for you in the past?
  10. LM Viking

    LM Viking Member

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    Location:
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    They were about 7 years old when changed. The previous owner spent a lot of time on anchor in north channel of Lake Huron.
    I bought the boat in late summer 2018.
    All chain rode and 55 # Rochna anchor on
    Ideal winch.
    No separate batteries for winch.
  11. LM Viking

    LM Viking Member

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    Oops. Windlass.
  12. Capt Ralph

    Capt Ralph Senior Member

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    2 x G24s will give you the starting amps.
    I have made 3 x G27 banks that fit in a 8D battery box.

    I recomend finding batteries with studs vs auto post.
  13. Milka

    Milka New Member

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    I Appreciate everyone's help. Unfortunately I have run out of time i was given to get her off the dock and I must walk away from her.

    Free boat come and get her I'll sign her over