Quote Originally Posted by Mr. Silver View Post
those rare times where I forget to charge it up...
The Garmin charges just fine from a battery power source. I've charged both the Forerunner and the Edge from my 4-AA battery pack on two-day tours. In a pinch you could do it on-bike from a bento box, if you have one, or even from your jersey pocket with a long USB cable. You could start a new fashion trend...