2016 Domane Di2 battery location options
So, after experimenting with Wheeltop, I decided to go ahead and make the move to Di2. It looks like when my gen Domane was released the idea was to install the battery in the downtube, under the "Control Center" cover. There appears to be a battery holder, which of course I don't have, but appears I can order it from Trek.
But today the common install seems to be putting the battery in the seat tube - I see there are a few rubber/silicone adapters that allow you to stuff the battery down into the Trek seat tube, which allows you to then drop on seat mast like normal... Trek actually has one - the "MKIV", Shimano makes one, etc...
Not sure if one way is better than the other? Since most bikes seem to go with seatpost mounting location as of late, is that now the preferred location? Heck they are so cheap maybe I just pick up both so I have either option...
And this generic one I saw being installed on BCR channel...