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  1. #1
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    Question How much juice needed to power 200xs / Lithium Battery question.

    Looking to shave weight and this seems to be the best price vs. weight vs. CCA lithium battery option on the market.

    Boat will only be powering a
    - Bosh Fuel Pump
    - Trim pump
    - Jack plate pump (in the future, maybe if needed)
    No radio, no lights.. pretty basic

    Cranking amps: 625
    Voltage: 12v
    Standard: 6.5
    Max: 25
    Size: 166x124x175
    Polarity: - +
    Weight: 5.5lbs


    Is 625 CA enough for a Merc 2.5 200xs ROS engine?

  2. #2
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  3. #3
    Join Date
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    upstate N.Y.
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    Quote Originally Posted by Pachanga_rick View Post
    Looking to shave weight and this seems to be the best price vs. weight vs. CCA lithium battery option on the market.

    Boat will only be powering a
    - Bosh Fuel Pump
    - Trim pump
    - Jack plate pump (in the future, maybe if needed)
    No radio, no lights.. pretty basic

    Cranking amps: 625
    Voltage: 12v
    Standard: 6.5
    Max: 25
    Size: 166x124x175
    Polarity: - +
    Weight: 5.5lbs


    Is 625 CA enough for a Merc 2.5 200xs ROS engine?
    my Opti manual says 800 CCA.
    why ask me ?


  4. #4
    Join Date
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    800 - 1000 cca is what I would go with..... always go more for safety............
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  5. #5
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    we rig all opti's with 1000 cca

  6. #6
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    Won't fire w less than 1000cca it will turn over and u will think there's a problem but no start

  7. #7
    Join Date
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    I run Odyssey PC 680 with my twin 200XS engines with no problems. Since its twin engine I always figured I could use both batteries to start one engine if needed. Never needed to do that yet.
    Not trying to defy what others are saying. Just saying what I'm using and is working.

  8. #8
    Join Date
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    I use an Optima 720 cca and never had a lick of trouble.

    Rock
    Team Junk

    No sparkling wiggles in here, only dump truck grinches.

    "Screamin Heathen"

  9. #9
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    I can start a motor with 250 lbs of compression over and over again with the 24 cell Antigravity. I feel pretty certain of will start an Opti
    Erik Kiser

  10. #10
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    Battery cable size plays a big role as well.... I never go smaller than 2 ga in any rig...... 4 ga will work, but eventually corrosion will make it's way in so having the extra cable size helps.............
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

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