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I am new to BMW ownership... Should I charge the battery using the Powerlet outlet?

Hey guys,

As you know, I just bought my first BMW motorcycle, the yellow R1200S.

It has the Powerlet outlet attached to the frame. I've never owned a bike with this feature.

Before I thought it through I attached the standard Battery Tender leads to the battery (I do this for all my bikes). But then I thought, "maybe I should charge it with the Powerlet Outlet". I checked the manual and it recommends charging via the Powerlet socket, and not charging the batter directly.

That said, the Powerlet Adapter is $20+ dollars just for the adapter, which is almost what I pay for the battery tender as I recall.

Is there any harm in just using the standard battery tender leads off the battery? I checked the manual and they seem to advise against doing this for some reason.

Thoughts and advice appreciated.

Neat Fact I Discovered About the R1200S: I just discovered that the rear passenger seat has small nylon loops underneath for attaching luggage / a tailpack. Very thoughtful feature.

I just bought the Kriega US-20 Drypack for my trip to Portland, so will test those out on Wednesday.

Mullet
Bend, Oregon
Old 07-17-2017, 09:16 AM
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What do you mean, the Powerlet outlet. Do you mean the standard BMW accessory socket. If so, on the R1200S that will not charge without the special BMW Charger, which is a lot more than $20. On the old R1100S you can charge through the accessory socket. But again, not the R1200S.

Best bet, and what I did on my R1200S is just attach the BatteryTender pigtail to the battery terminals directly.

Reading entertainment: Accessory Socket Question - Bobby?
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2000 R1100S, 2000 Dyna FXDX, 2015 rNineT. 2016 Rubicon, 2010 F-150, 1995 GMC Sierra. 2001 Corvette, 1978 Porsche 928. Schwinn Homegrown MTB & Fastback Road Bike. 22 pairs of shoes. 44 bottles of beer.
Time Marches On: 2010 F800GS, 2007 R1200S, 2003 Dakar, Buell 1125r, 2001 F650GS. 1999 F650. 1998 HD Sportster Sport. ALL GONE

Last edited by ckcarr; 07-17-2017 at 10:06 AM..
Old 07-17-2017, 10:03 AM
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Quote:
Originally Posted by ckcarr View Post
What do you mean, the Powerlet outlet. Do you mean the standard BMW accessory socket. If so, on the R1200S that will not charge without the special BMW Charger, which is a lot more than $20. On the old R1100S you can charge through the accessory socket. But again, not the R1200S.

Best bet, and what I did on my R1200S is just attach the BatteryTender pigtail to the battery terminals directly.

Reading entertainment: Accessory Socket Question - Bobby?
Yes, that's correct. The accessory socket. I attached the Battery Tender pigtails to the battery directly, but then read in the manual that BMW says not to do this for some reason, hence the question.

It sounds like it's fine to do as I've done, and just charge the battery off the leads from the battery terminals.
Old 07-17-2017, 11:07 AM
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Brent
 
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the r1200 uses a central control with no fuses,
so as I understand it the charger talks to the conroller to turn it on to
allow charging.
I have one of the official bmw chargers but I think there are other chargers that
support this as well.
I am not certain how it communicates still just a 2 pin device,
honestly been to lazy to take out a scope and look at it.
Old 07-17-2017, 04:51 PM
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Mullet,

See here, plug and play solution for you:
FS: BMW CANBus Battery Charger
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Old 07-17-2017, 09:13 PM
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I don't see why that'd be a problem either. Maybe if the control module had an automatic shutoff due to overvoltage, but I would think that it would have that at the input as well in case of alternator failure.

FWIW - my bike came with the battery tender hook up connected directly to the battery. (used, not new)
Old 07-18-2017, 03:59 AM
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There is no problem.

You can buy the battery charger above for $100 or this for $6.80
https://www.amazon.com/Battery-Tender-081-0069-6-Terminal-Disconnect/dp/B000NCOKZQ/ref=sr_1_7?s=automotive&ie=UTF8&qid=1500383411&sr=1-7&keywords=Battery+tender
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2000 R1100S, 2000 Dyna FXDX, 2015 rNineT. 2016 Rubicon, 2010 F-150, 1995 GMC Sierra. 2001 Corvette, 1978 Porsche 928. Schwinn Homegrown MTB & Fastback Road Bike. 22 pairs of shoes. 44 bottles of beer.
Time Marches On: 2010 F800GS, 2007 R1200S, 2003 Dakar, Buell 1125r, 2001 F650GS. 1999 F650. 1998 HD Sportster Sport. ALL GONE
Old 07-18-2017, 05:10 AM
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I use a similar tail from my battery but for a Ctek charger CTEK CTADAPT260 Comfort Connect Eyelet (M6) and charge the battery direct without any problems. Avoid using the power accessory outlet unless you have one of the specific CanBus compatable chargers.
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Last edited by justcruising; 07-18-2017 at 09:06 PM..
Old 07-18-2017, 03:39 PM
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Quote:
Originally Posted by ckcarr View Post
I have 5 of those laying around my garage, so I appreciate the advice.

(the check is in the mail).

Thanks everyone for the advice. I leave tomorrow for Portland, then on to Seattle, then back to Bend on Sunday or Monday.

First road trip on the R1200S. I am packing some Advil for my 47 year old bones.

Will take pictures and post them along the way.

Mullet
Bend, Oregon
Old 07-18-2017, 07:48 PM
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You'll appreciate the Kriega 20. Works well on my R11S, though I had to install the loops.
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Old 07-19-2017, 08:31 AM
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