Originally Posted by OuterMarker

Di2 Questions

This will be my first Di2 build and I have some questions. It looks like full Di2 kits are hard to come by now, so I will have to gather all the components myself. There seem to be several versions of Di2 and most of the stuff online goes over the first generation. I want the cleanest install (no visible battery packs or junction boxes).

It looks like I need a battery, a junction box, a battery charger, and a wireless unit (maybe?). I know the battery goes in the seat tube and the junction box goes in the bar end. But where does the charger and wireless unit go? Also, what cables do I need?