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Old 01-30-2009, 11:35 AM   #4
BillR   BillR is offline
 
Join Date: Sep 2008
Location: Nashville, TN
Posts: 588
Quote:
Originally Posted by SpeedSouth
Thanks for the info.
I actually just bought a new (to me) gps that I'll have tomorrow, so I don't know what it will pull. I don't think it's much though.

I just hate to pull any extra if the light dims w/ rpms, which I think it does. I may run a small voltmeter (datel makes a nice one) to help keep an eye on things.
I read up on a couple of devices and the amp draw looks to be minimal.
I still bet it won't be a problem.

My headlight did not dim with increased RPMs.
It dimmed when the voltage regulator cut the battery charge voltage as the battery topped off.
Even though the headlight was not hooked to the battery, somehow this affected the voltage going to the headlight from the stator.
I saw the same behavior at idle and holding it at 4K RPM.
If I increased the amp draw (by using a 55watt bulb) it didn't change at all.
Since changing over to the direct feed off the battery, no problems.
Course I only ride about 30-45 minutes at at time right now (work commute). I may see different behavior on a long ride.
Bill


 
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