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Thread: battery

  1. #1
    Team Member river_ratj40's Avatar
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    Default battery

    ive got a interstate battery, 340 cold cranking, 450 cranking amps.

    I also have a holly red fuel pump producing the fuel.

    I am unsure what the charging system puts out on the 56 cube omc, do you think it would be enought to handle the fuel pump. I dont have anything else draining power except trim/tilt.

    If i put it on the charger every so often, it should be alright, right?

  2. #2
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    Default Not Enough

    If you are using that battery as a starter battery, and running other things from it like radio, etc, that is a pretty lightweight battery. It is taxing your charging system pretty hard.

    My dad sells lawn mower batteries with more CCA than that.

    Your best bet is to pick up a deep cycle. That way it will have the reserve to run your fuel pump, etc, and the charging system will maintain the battery. Better safe than sorry in my book.

  3. #3
    srg part timer 50hptiller's Avatar
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    i run a lawnmower battery in my boat, merc trim and 3 gauges, and a holley blue no problems and i never charge it. you could hit it with a triclke charge and prolly get more life out of it. on my new fi motor i run a 4wheeler battery, haven't had a problem yet

  4. #4
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    Default battery

    56 cube omc battery 500 cca (620 mca) reserve capacity 60 amp hour,altenator 6- amp non- regulated. did not give hp. & year this may or may not be for your engine. do not use a deep cyl for starting engine.

  5. #5
    Team Member river_ratj40's Avatar
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    Default early 90s

    my omc is an early 90s split port motor. the only electronics i run is tach and trim.

    So far so good with the lawn battery.

  6. #6
    Team Member ima75man's Avatar
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    Default battery

    little battery, wont crank my 56 omc, must have tighten my head gasket to tight. 220 lbs. compression. 75 man out

  7. #7
    srg part timer 50hptiller's Avatar
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    Quote Originally Posted by ima75man View Post
    little battery, wont crank my 56 omc, must have tighten my head gasket to tight. 220 lbs. compression. 75 man out
    here we go...........wrong section....lol

  8. #8
    Team Member ima75man's Avatar
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    Default battery

    cody, bet my moter spin over faster than your. see who's battery and starter last the longest.. 75 man out looking for srg

  9. #9
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    Default Deep Cycle

    As the family Busines is Mason battery, a wholesaler of Marine Batteries, auto/truck/RV, I can say you can use a Deep Cycle battery to crank your engine.

    They make Deep Cycle lawn mower batteries, and motorcycle batteries. They have come a long ways in technology on small batteries like the lawn mower and motorcyle. I use a small motorcycle battery to crank over my 49.9 850CCMH. It lasts about a weekend of racing and then it is dead. Of course I don't have the charging coil connected either.

    If you are worried about weight, use the smaller battery, it will get you by if you buy a very good one with a lot of reserve and CCA. Be carefull of a non gell cell in the smaller batteries like a motorcycle. Some manufactures sell them with Cranking Amps and not Cold Cranking Amps. There is a big difference.

  10. #10
    Team Member 88workcar's Avatar
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    On my 90 yammi, lawn mower batt, trim used all day, multiple starts, we stop often. never charge it, no problems.
    Helping folks out around the globe.

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