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Best replacement battery for 2007 Big Dog K9

Discussion in 'General' started by Brock, Jun 23, 2017.

  1. Five Five

    Five Five Well-Known Member
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    i use a car battery 465 CCA .... I been running it for 5 years now and i don't use a trickle charger

    tomioka-racing-tr-b1500-lightweight-racing-battery.jpg
     
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  2. LARS

    LARS sippin & cruzin

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    I've used Braille twice, didn't like waiting around for delivery, went Batteries Plus store right down the street, had the bike up and running in 45 min from start to finish, they have Duracell 24 month free replacement at $124, so far working out well for me in Fla heat.
     
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  3. LARS

    LARS sippin & cruzin

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    That looks interesting, how'd it fit?, I'll look it up for price and where it's sold,, Thanks, worth lookin at.
     
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  4. badyellowvette

    badyellowvette Active Member

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    I have been through two TR batteries in four years never again.
     
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  5. Dawggydawg

    Dawggydawg Member

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    Bought a Braille in Jan '14 when I bought my '05 Mastiff.....it's still going. I keep it on a tender since I don't ride it much anymore. But it's still going.


    Sent from my iPhone using Tapatalk
     
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  6. Jersey Big Mike

    Jersey Big Mike Active Member
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    I've got 2 brailles and without a doubt they have been the best battery I have put in a Motorcycle since I got my first bike in 2003.

    I've torn up just about everything else in 1yr or less with both my Big Dog and my BMC. (Harley, Interstate, walmart specials, and a Lithium) - Haven't used the TR racing (Tomioka Racing, although from my limited checking, I'd bet they are actually relabled Braille units, don't think a small company with a mailing address of a UPS Store is really making batteies. But I can neither confirm or deny this)

    Basically -- get whatever you can afford and see what works for you -- As you can tell from the thread, there is NO clear concise winner -- every brand out there you can probably find someone here who's gotten great results as well as someone who had miserable results.

    The bottom line is - We need better battery technology! Someone needs to make a cold fusion reactor -- that's the ticket -- then we can skip the engine and just get a sound effects set for the riders that need their bike to "sound right" going down the road.
     
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  7. Jersey Big Mike

    Jersey Big Mike Active Member
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    Well of course I mouthed off last night and this morning the Braille wouldn't start the dog -- karma is a bitch. Although I must admit - I do have a tendency to forget to put it on the trickle charger when I park it in the my trailer/garage.

    So I figured it out, had that battery about 2 yrs -- overall a wash, either pay more and get longer life or use cheapy doesn't seem to really effect the value if you do price/life.

    Just saw on walmart.com battery for 54.50 with free shipping AGM 310CCA, Hell for that price I might just buy 2 now and use one and keep the other stored for whenever. Might go for the Duracell at 125 with 2yr warranty just because I can pick it up ASAP.
     
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  8. Th3InfamousI

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    I have bought the ES20LB battery you pour Acid in yourself it's listed for $78 but after core it's like $65. Replace them every spring and ride.

    Keep the receipt in your tool roll and then if anything ever happens on the road there is always usually a Walmart somewhere if you need to replace. Which is another reason I Kinda like it.

    Sent from my 2PS64 using Tapatalk
     
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  9. Brock

    Brock Member

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    Hi again my friends. when I removed the original battery from my 2007 Big Dog K9, I discovered that it had some type of foam padding attached to its side like a sticker, apparently to protect the battery from some bolt heads on the side of the battery box. I tried to peel off said foam padding sticker to reuse it on my new battery, but was unable to do so. Any suggestions of what I can use as a replacement for said foam padding, and where to buy it? Thanks again for all your great and friendly advice, as I couldn't do many things to my K9 without your help. All The Best--Brac
     
  10. Th3InfamousI

    Supporting Member

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    Head over to Home depot and look for some thin closed cell foam weather stripping.

    Sent from my SM-G925P using Tapatalk
     
  11. dentdude36

    dentdude36 Guru

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  12. BWG56

    BWG56 Guru

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    You could also use a piece of 3/8" or 1/2" plywood to take up the space.
     
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  13. diver1

    diver1 Member
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    I use a piece of neoprene from a cut up wet suit.
     
  14. cdogg556

    cdogg556 Guru

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  15. dentdude36

    dentdude36 Guru

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    Yes I have it and so does steve (usnchief)
     
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  16. cdogg556

    cdogg556 Guru

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    It's now on my "wish list" :)
     
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  17. dentdude36

    dentdude36 Guru

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    :old2:
     
  18. pknowles

    pknowles Getting better by the day...---... GURU
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    I have started in the beginning and trying to find information on the best battery for our bikes. Ohmster had a pretty good entry

    [​IMG]
    OhmsterKansas Motorcycle Works

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    All batteries will discharge at the same rate. That all is determined by how much parasitic draw the bike has. EFI models having more of a draw than carb models do. However, the Harley battery is a Yuasa battery with a Harley logo on it and it is a 310 CCA rated battery while the BDM battery is a 270 CCA rated battery. The larger rated battery has more available amps so it would take just a bit longer to discharge.

    One other thing to consider also, just because the battery is rated at 270 or 310 CCA with a properly maintained battery it can have a much larger available amperage. A well maintained battery being either a 270 or a 310 CCA battery could have up to 450 to 500 available amps.

    Morel of the story is use a tender to keep your battery properly maintained. Batteries not maintained will begin to sulfate as the bike sits idle and once you do throw it on a charger that sulfation has taken it's toll. Instead of a battery being at 90 percent capacity it could now only be able to charge to 70 percent for example. So the battery that once had 450 available amps might now only have 400 available amps and so on.

    #2 Ohmster, Dec 14, 2007
    Report
     
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