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Thread: Battery Tender '06 R1200GS

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  1. #1
    Registered User bobframe's Avatar
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    Battery Tender '06 R1200GS

    I need a "smart" battery charger for my '06 GS that I can leave plugged up to the bike whenever its stored and not worry about damage to either bike or battery. I've had great luck with a Battery Tender on my ST1300, but am concerned about the BMW electrical system. I'm sure BMW sells one, but I'd like to find one that is closer and cheaper.

    Suggestions?

    Many thanks,

    Bob
    Last edited by deilenberger; 01-28-2013 at 07:52 PM. Reason: added year/model to title

  2. #2
    Registered User lbarbee's Avatar
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    Battery Tender

    Lynn
    2008 BMW R1200RT (most fun you can legally have)
    2002 BMW R1150RT
    2008 Kawasaki Versys

  3. #3
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    Battery Tender Junior works well and is usually under $30.
    14 R1200GSA, 93 R100R. No car is as fun to drive as any motorcycle is to ride.

  4. #4
    Registered User toooldtocare's Avatar
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    I second the Battery Tender, or even the full size one. I have used them for many years with no problems. As soon as I get home I connect it and forget it using a fused pigtail.

    Wayne

  5. #5
    Old man in the mountains osbornk's Avatar
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    Quote Originally Posted by milo View Post
    Battery Tender Junior works well and is usually under $30.
    I agree. I've had 2 for years. Found them on sale at Motorcycle Superstore for $19.95 each.
    'You can say what you want about the South, but I almost never hear of anyone wanting to retire to the North.

  6. #6
    Norm Norms 427's Avatar
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    I use Sears smart charger/monitors for about $30 wired directly to the battery terminals.

    BTW, I'd recommend using a christmas tree light timer so that you can program the charger/monitor to come on only about an hour each day ... 24/7 is overkill.
    Now: '12 R1200RT Midnight Blue Metallic / '11 Ural Patrol 2WD ridden to Alaska / '09 KLR 650 / '05 HD Heritage Softail / '08 Harley Sportster 1200C / '85 Yamaha VMax bought new. I wasn't ready to say goodbye: www.shaunlunt.typepad.com

  7. #7
    Registered User bobframe's Avatar
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    Quote Originally Posted by Norms 427 View Post

    BTW, I'd recommend using a christmas tree light timer so that you can program the charger/monitor to come on only about an hour each day ... 24/7 is overkill.
    But isn't this what the "smart" charger is all about? Thought it could "read" the battery and only apply what charging was needed....thus allowing a lazy owner, such as myself, to plug it up and then fully ignore the whole thing. I have used such a charger on my Honda and left it unattended for weeks at a time with no ill effects.

    I would connect the charger directly to the battery, so using an accessory port is of little benefit to me.

  8. #8
    Registered User b25bsaboy's Avatar
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    Quote Originally Posted by milo View Post
    Battery Tender Junior works well and is usually under $30.
    1+
    Rick MacPherson
    Success is Not a Destination, But a Journey.
    Accredited Motorcycle Appraiser
    1968 BSA Starfire, 1976 BMW R75/6, 2009 R1200RT

  9. #9
    Riding where it's hot! AZ-J's Avatar
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    The Battery Tender I have is good for up to 14.7 Volts.
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  10. #10
    Registered User lbarbee's Avatar
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    Battery Tender

    I have all 3. Problem with the junior is it won't charge if battery is very low, say if owner left something on and killed the battery. Full size battery tender works well also. I use mine on my 1150. Optimate will charge thru the canbus power ports and has additional features to de-sulphate (sp?) the battery. All three will maintain well. I use jr on the versys, full size bt on the 1150, and optimate on the canbus rt. in my opinion, worth the extra $50, but all will work. My dealer sells the optimate if that means anything.
    Lynn
    2008 BMW R1200RT (most fun you can legally have)
    2002 BMW R1150RT
    2008 Kawasaki Versys

  11. #11
    Registered User bobframe's Avatar
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    Quote Originally Posted by lbarbee View Post
    I have all 3. Problem with the junior is it won't charge if battery is very low, say if owner left something on and killed the battery. Full size battery tender works well also. I use mine on my 1150. Optimate will charge thru the canbus power ports and has additional features to de-sulphate (sp?) the battery. All three will maintain well. I use jr on the versys, full size bt on the 1150, and optimate on the canbus rt. in my opinion, worth the extra $50, but all will work. My dealer sells the optimate if that means anything.
    Does it take a "special" charger such as the Optimate to charge through the accesory plugs? That is, does the CAN-bus system dictate a unique charging technology?
    We don't take a trip...the trip takes us.

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  12. #12
    K Bikes Complex by Choice cjack's Avatar
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    Quote Originally Posted by bobframe View Post
    Does it take a "special" charger such as the Optimate to charge through the accesory plugs? That is, does the CAN-bus system dictate a unique charging technology?
    There has been a lot of discussion about this since the accessory socket was connected to the ZFE in about 2005...but I think the answer is no. Connecting any charger to the socket will keep the circuit on until the charger goes to float and then it may or may not switch off. It's a lot simpler to connect a pigtail to the battery and be done with it.
    BMWMotorcycles, fun when they're running...
    My other bike is a BMW.
    Jack Hawley MOA and RA #224, KE9UW ("Chuck")

  13. #13
    Geek jlevee's Avatar
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    Accessory Socket Charging

    When I got my 1150 I used the accessory socket to charge (its an 04) I thought it was the best idea ever. However now it wont charge through the socket & I had thought maybe my tender had issues, so I borrowed one from a friend, turns out it wont charge through the socket either. Not sure if it is the socket itself or something else in the system yet. In talking to my dealership they said BMW no longer recommends using the accessory socket for charging, so i use pigtails on it & the RT.

  14. #14
    Registered User lbarbee's Avatar
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    Battery Tender

    I am not a battery expert, but when I bought my full size BT I was instructed to get one for a gel cell battery which charges slightly different. New ones may be switchable but not when I purchased.
    Lynn
    2008 BMW R1200RT (most fun you can legally have)
    2002 BMW R1150RT
    2008 Kawasaki Versys

  15. #15
    Registered User lbarbee's Avatar
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    Battery Tender

    Btw, OP said "smart"
    Lynn
    2008 BMW R1200RT (most fun you can legally have)
    2002 BMW R1150RT
    2008 Kawasaki Versys

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