Extended battery life is very neccesary for using the device on long brevets and multi-day endurance racing. Can Garmin Edge cycling GPS units 500/510 and 800/810 be charged while riding via external ...
We are going to do a bike tour through France and Spain with a friend at the end of the summer. I was wondering what is the best option for a gps. Ideally we want something with the ability to display ...