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  1. kenny@bunchmarine
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    #21
    Weird question but what battery are you running with this new motor?

  2. Member
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    #22
    Dealer installed AGM Interstate. I believe group31. but not sure about size. This is not the first Pro XS 4 stroke they have sold. I assume they know the battery requirements for these Motors!

  3. kenny@bunchmarine
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    #23
    Quote Originally Posted by Little sister View Post
    Dealer installed AGM Interstate. I believe group31. but not sure about size. This is not the first Pro XS 4 stroke they have sold. I assume they know the battery requirements for these Motors!
    You'd be surprised .... Just checking, trying to help. We've seen other dealers install lead acid batteries and these engines have issues very similar to the this issue. Also, loss of top end speed. After diagnosing and changing to the recommended AGM, all was fixed. Just sayin....

  4. Member
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    #24
    Quote Originally Posted by kenny@bunchmarine View Post
    You'd be surprised .... Just checking, trying to help. We've seen other dealers install lead acid batteries and these engines have issues very similar to the this issue. Also, loss of top end speed. After diagnosing and changing to the recommended AGM, all was fixed. Just sayin....
    I do appreciate all the feedback I've recieved on BBC. The first thing I checked when the problem showed up was the battery just to make sure it was an AGM ofthe recomended size. It seems to be charging OK And I have put 2 hrs on the motor before the problem showed up. it still could have a bad or weak cell I guess. Been in the shop 7 days this go round. I'll check on it tomorrow To see what Mercury is saying now.

  5. Member Triton19x2's Avatar
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    #25
    Quote Originally Posted by Little sister View Post
    I do appreciate all the feedback I've recieved on BBC. The first thing I checked when the problem showed up was the battery just to make sure it was an AGM ofthe recomended size. It seems to be charging OK And I have put 2 hrs on the motor before the problem showed up. it still could have a bad or weak cell I guess. Been in the shop 7 days this go round. I'll check on it tomorrow To see what Mercury is saying now.
    Hmmmm......I had a Sears Platinum 31 that Sears kept saying was fine and then finally replaced in 2013.....still running that replacement battery today and boat runs much better.....I had a dud

    2019 721 ProXs 4S 250
    2B599739

  6. Member flybyy1's Avatar
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    #26
    Little sis, keep us posted please!!!!!
    i am still waiting on my 225v8 to come in, I will certainly follow recommendation, but if it winds up being an AGM vs Wet cell, causing the issue, , I am going to need a specialist to tell me why.
    i understand AGM more shock resistant, etc, etc,,, but in my world!,(aviation, agriculture) 12vDC is 12vDC, CCA is CCA, and reserve hrs are reserve hours.
    Gene
    22 BassCat Lynx
    22Mercury proXS
    Hummingbird/garmin
    ALX rods/Shimano /Lews
    Maxwell Flying inc

  7. Member lpugh's Avatar
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    #27
    Quote Originally Posted by flybyy1 View Post
    Little sis, keep us posted please!!!!!
    i am still waiting on my 225v8 to come in, I will certainly follow recommendation, but if it winds up being an AGM vs Wet cell, causing the issue, , I am going to need a specialist to tell me why.
    i understand AGM more shock resistant, etc, etc,,, but in my world!,(aviation, agriculture) 12vDC is 12vDC, CCA is CCA, and reserve hrs are reserve hours.
    Gene
    Don't know this for a fact as to the reason Mercury recommends AGM. I suspect the requirement for AGM is because at a lower state of charge the AGM will have less voltage drop at the same current draw than a wet cell lead acid battery. A lithium would be even better in this regard, yet they are not approved at this time!
    Thank You Leon Pugh

  8. Member
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    #28
    Quote Originally Posted by lpugh View Post
    Don't know this for a fact as to the reason Mercury recommends AGM. I suspect the requirement for AGM is because at a lower state of charge the AGM will have less voltage drop at the same current draw than a wet cell lead acid battery. A lithium would be even better in this regard, yet they are not approved at this time!
    Dealer is back in touch with Mercury as of Friday. I'm sure it will be after Christmas before anything gets done.

  9. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #29
    Quote Originally Posted by lpugh View Post
    Don't know this for a fact as to the reason Mercury recommends AGM. I suspect the requirement for AGM is because at a lower state of charge the AGM will have less voltage drop at the same current draw than a wet cell lead acid battery. A lithium would be even better in this regard, yet they are not approved at this time!
    Combination of that AND:

    ALL V6/V8 models utilize Electronic Shift and Throttle (absolutely no room for any power abnormalities)

    AND the idle charge strategies built into the PCM would almost certainly need very consistent battery types.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  10. Member
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    #30
    Dealer called today. Mercury is now telling them to replace the shift actuator.I thought it had already been replaced. I stand corrected. Shift sensor was replaced which did not correct the problem.I was also told that the motor was not in Guardian mode. Should get the Ranger back after the 1st. We'll see if they have figured it out.

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    #31
    I know of a few V8 4 strokes running lithium cranking batteries with no issue so far.

  12. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #32
    Quote Originally Posted by jphillips2546 View Post
    I know of a few V8 4 strokes running lithium cranking batteries with no issue so far.
    The issue will be when almost anything goes wrong. Installation instructions and decal that is supplied in the crate with the engine VERY clearly indicate that an AGM battery must be used.

    We've asked about Lithiums- the only answer we're received is a repeat of the above info.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  13. Member
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    #33
    For those of you who have been following my Pro XS problems, here's an update. Picked the Ranger up yesterday. Mercury sent a new Shift Actuator which was installed. Ran the boat a couple of hrs today with no problems. Have ran a lot of 225s over the years. Never had anything with this kind of torque! Very impressive motor. Plan to put some more time on it tomorrow. Will see. One other thing I noticed. A low voltage warning came up on my Hummingbird in dash. This boat was rigged at Ranger. Cranking batt is a interstate AGM 800cca which only meets minimum requirements. I believe I need to upgrade.

  14. Member Macsimus's Avatar
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    #34
    Thanks for the update. Good luck

  15. Member 2500's Avatar
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    #35
    Good to hear, Odyssey 2150 AGM works for me and my voltage use
    JEFF MURRAY USMC
    RANGER Z521C & 15 VERADO PRO 250
    DEEP CREEK LURES and ROSE JIGS
    GREENFISH TACKLE and ALX RODS

  16. Member flybyy1's Avatar
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    #36
    Thanks sis!
    22 BassCat Lynx
    22Mercury proXS
    Hummingbird/garmin
    ALX rods/Shimano /Lews
    Maxwell Flying inc

  17. mikesxpress
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    #37
    Quote Originally Posted by 2500 View Post
    Good to hear, Odyssey 2150 AGM works for me and my voltage use
    This is one of the two best AGM batteries. I have 4 in mine.

  18. Member Triton19x2's Avatar
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    #38
    Quote Originally Posted by mikesxpress View Post
    This is one of the two best AGM batteries. I have 4 in mine.
    Damn...$500 each?

    2019 721 ProXs 4S 250
    2B599739

  19. Member
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    #39
    If you expand your search you can "buy it now" for $389.99 and free shipping. I just ordered one as my 6yr old PM-1 is borderline reliable.
    _______

    Phil
    '09 Hewescraft ProV
    '09 150 Optimax


  20. mikesxpress
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    #40
    I had the Odyssey 2150 AGM's before the PM1's and now that Sears doesn't carry the PM1 I will be going back to Odyssey. They average 6+ years for me.

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