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Thread: 1990 R 100 GSPD new battery suggestions

  1. #1
    not lost til out of gas 128521's Avatar
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    1990 R 100 GSPD new battery suggestions

    morning all, I would like to up grade my electrical system, starting with my battery and cables. I am using this bike for backcountry adventure. I currently have an Exide 12 V 19 AH gel battery that I bought from the BMW dealer in june 2007. is gel the best way to go? thanks
    don't know where I'm going, but I'm making good time. 1990 R 100 GSPD, 2005 R 1200 GS

  2. #2
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    Here we go again!!

    I've bad about GEL and good.

    Price is the issue for me because I believe that (within reason) the hugely expensive batteries only offer marginal, if any, benefit.

    I also think the locations around - how many close if you have trouble?

  3. #3
    Registered User helmut_head's Avatar
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    Odyssey

    I have an Odyssey gel in my R80RT (83). It works, but I have no opinion on durability yet. Happy to have potentially leaking fluids away from the bike, though.
    Helmut always wears a Helmet.

  4. #4
    . AntonLargiader's Avatar
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    I've been having great results with the Odyssey PC680 in most BMWs. I've probably sold 50 of them, easily, in the last few years with only one return which could have been customer-caused.

    In my own R100GS, I'm actually using its smaller brother, the PC545.
    Anton Largiader 72724
    largiader.com bmwra.org

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    Shorai

    Do yourself a solid and get a Shorai.

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    Dick
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    "Hey, where you goin'?" "Nowhere in particular." "Man, I wish I was you." "Well, Hang in there..."

  6. #6
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by 128521 View Post
    I would like to up grade my electrical system, starting with my battery and cables.
    I don't know what there is to upgrade with a battery, but you can certainly cut down on voltage drop losses by getting, or better yet, making up your own cables. Welding cable is ultra flexible due to the very high strand count and has a very low resistance. That mated with good connectors that are soldered at the ends is a good start.

    Once you have that, the best start is by taking a simple voltage measurement across the battery with the engine running at various RPMs. You want to make sure your alternator and especially the voltage regulator is set to the battery type you are using.

    I get 9 years out of a "seasonal" flooded lead acid battery that I didn't even stay on top of maintenance-wise and 16+ years out of my car batteries. So how exactly will I benefit from those other types?


    Quote Originally Posted by 128521 View Post
    Is gel the best way to go?
    I chose not to go with a VRLA battery during my last purchase. Too many disadvantages to them.

    And I certainly do not want a Li-Ion battery.

  7. #7
    not lost til out of gas 128521's Avatar
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    thanks for the info, I am leaning towards the Odessy PC 680, they stress the vibration resistance, which is important to me, they are made in the US, and I found a place in Grants Pass OR ( batterystuff.com ) with a good price. so I will have to ride down and see them.
    don't know where I'm going, but I'm making good time. 1990 R 100 GSPD, 2005 R 1200 GS

  8. #8
    Day Dreaming ... happy wanderer's Avatar
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    If you decide to go with Odyssey PC680 prices I have been able to find right here:
    http://sepbatteries.com/pc680-odysse...FdIAQAodtmYK7A

    $95, ground shipping is free

    "Your application may vary, all standard disclaimers apply"
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

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