i have a shimano dyno - was on my fargo now on my krampus. i have the usbwerk for charging a lime fuel battery or my exposure diablo light, as well as topping off the iPhone or running the garmin.

my exposure revo light is on its way back from the UK for warranty repair, when it gets back i'll be building a switch setup that diverts current from the light to the usbwerk (or all off) using this 3d printed housing that fits on my steerer tube.

for me, GPS rides on the stem, light on the jones loop. i may or may not run aero bars... have mounted them but just don't need them for 90% of my local riding (they will go on for a TD attempt at some point in the future...) - but i plan on making a bridge that connects the 2 aero arms and putting the gps or light up there.

Dyno Switch Housing v1 (minuteman sent me the wrong switch so I'm hoping they ship out new ones ASAP) by mbeganyi, on Flickr

dynoswitchschematic by mbeganyi, on Flickr

Untitled by mbeganyi, on Flickr

current cockpit (without the charging switch mounted up)

IMG_3867 by mbeganyi, on Flickr

(spot will ride elsewhere, put it on the bars temporarily)