Old 04-18-13, 11:35 PM
  #10  
keithm0
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Join Date: Mar 2006
Location: Woodinville, WA
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Bikes: Specialized Diverge, Santa Cruz Tallboy LT Carbon, Specialized Stumpjumper (hardtail), Kona Humuhumu, Co-Motion Nor'Wester

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http://trackmytour.com/

It doesn't automatically record every 10-20 minutes, but it only enables GPS & location services whenever you want to record a waypoint. I've played around with it a bit, and it does seem to greatly extend battery life.
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