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Old 04-28-2013, 11:33 PM   #1
marchyman OP
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R1200GSW Alternator Output

I'm curious, anyone know the actual output?

The BMW press release/introduction doc says 620 watts.
BMW published specs says 580 watts.
Some sites seem to confuse the GSW with the 2013 GSA and report 720 watts.
Someone representing BMW at the moto show last november claimed reduced wattage, around 480 watts.

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Old 04-30-2013, 06:20 AM   #2
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I believe 480 was what I read on the "info" sheet,on one of the Dealers showroom models.
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Old 04-30-2013, 09:24 AM   #3
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What?

480 watts??? Are you kidding? Unfreaking believable
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Old 04-30-2013, 10:27 AM   #4
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Originally Posted by BMWRich View Post
I believe 480 was what I read on the "info" sheet,on one of the Dealers showroom models.
That's what I read too.
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Old 04-30-2013, 11:00 AM   #5
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480 watts??? Are you kidding? Unfreaking believable
Why? The bike uses less than previous bikes, especially with the LED headlight and other lights.

I expect useable watts are similar to previous bikes.

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Old 04-30-2013, 12:11 PM   #6
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From BMW MC USA site:

Electrical system
Alternator three-phase alternator 580 W (nominal power)
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Old 04-30-2013, 01:44 PM   #7
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Originally Posted by ShaftEd View Post
From BMW MC USA site:

Electrical system
Alternator three-phase alternator 580 W (nominal power)
Yep. That's one of the numbers I posted. And the official BMW press package said 620 watts. And then there's the official BMW number on info sheets reading 480 watts.

screwit... what makes you think the 480 number is more accurate than the other numbers? Or do you just like to bitch about all things BMW.
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Old 04-30-2013, 04:57 PM   #8
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Originally Posted by marchyman View Post
Yep. That's one of the numbers I posted. And the official BMW press package said 620 watts. And then there's the official BMW number on info sheets reading 480 watts.

You know I searched for the wattage after only reading the first line of your first post. Didn't realize your research had found 3 different numbers. All I can add to the discussion is that the new WC GS uses the same alternator as the K1600GT/L which also states a 580 Watt output. You really wouldn't think that is enough for a large touring rig, but those guys seem to have no problem running all kinds of accessories including heated gear for for rider and passenger.
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Old 04-30-2013, 05:04 PM   #9
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Originally Posted by ShaftEd View Post
You know I searched for the wattage after only reading the first line of your first post. Didn't realize your research had found 3 different numbers. All I can add to the discussion is that the new WC GS uses the same alternator as the K1600GT/L which also states a 580 Watt output. You really wouldn't think that is enough for a large touring rig, but those guys seem to have no problem running all kinds of accessories including heated gear for for rider and passenger.
Like on the early R1200GS with a 600 watt alternator and servo brakes that use 200 watts, plus all the other factory stuff using up to 180 more watts, there was never a shortage of power on it unless you did parade duty for many hours all bundled up with heated gear and lights going.

I suspect 580 is plenty with the LED lights, and even without.

Jim
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Old 04-30-2013, 05:35 PM   #10
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I agree that 580 is enough... at least enough for my use. I had no issues with 600 watts on my '05 GS with its whizzy brakes. I bet those brakes took a bit more than the 20 watt difference.
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Old 04-30-2013, 05:40 PM   #11
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Originally Posted by marchyman View Post
I agree that 580 is enough... at least enough for my use. I had no issues with 600 watts on my '05 GS with its whizzy brakes. I bet those brakes took a bit more than the 20 watt difference.
More like 200 watts at full power!

Jim
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