Alternator output??

gogiburn · July 25th, 2010, 08:07 AM

Need to know the output of the alternator and also the draw from the fan? See other post for farkles as I added driving lights 55Watts and rear running lights 8 watts each side and lost battery last night after a spirited high RPM ride.Rethinking the situaation last night I realize it ws 95 degrees and stopping at the light may have had the fan runniing and that drew the battery down I have a Datel volt metter on my Concours and the fan does draw quite a bit of power when on at idle.
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ithaca00 · July 25th, 2010, 10:41 PM

There's a detailed breakdown of the output over at ninja250.org but it's about 50-60 Watts of overhead. If you're running TWO driving lights and TWO 8 Watt lights in the back then you're going to kill the battery really quick, even cruising at high RPMs.

July 25th, 2010, 08:07 AM	#1
gogiburn ninjette.org member Name: RIP Location: nj Join Date: Jun 2010 Motorcycle(s): have 24 Posts: 53	Alternator output?? Need to know the output of the alternator and also the draw from the fan? See other post for farkles as I added driving lights 55Watts and rear running lights 8 watts each side and lost battery last night after a spirited high RPM ride.Rethinking the situaation last night I realize it ws 95 degrees and stopping at the light may have had the fan runniing and that drew the battery down I have a Datel volt metter on my Concours and the fan does draw quite a bit of power when on at idle. Posted via Mobile Device

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July 25th, 2010, 10:41 PM	#2
ithaca00 ninjette.org guru Name: Ryan Location: Sacramento, CA Join Date: May 2009 Motorcycle(s): 2007 EX250 (street), 1994 EX250 (Race), 2008 250R (Race), 2000 250 (project), 1991 EL250 (a cruiser!) Posts: 287	There's a detailed breakdown of the output over at ninja250.org but it's about 50-60 Watts of overhead. If you're running TWO driving lights and TWO 8 Watt lights in the back then you're going to kill the battery really quick, even cruising at high RPMs.