The Shimano BT-DN110-A Built-In Type Di2 Battery is ...
the power source for Shimano's 11 speed Di2 derailleurs and shifters. Its thin, sleek profile allows the battery to fit in seatposts or frames for a clean look.
The Shimano BMR1 and BRM2 Di2 External Battery ...
Mount Base is designed to provide an attachment point for Di2 external batteries. This mount will attach to the frame around the waterbottle bosses, and is slim enough to fit underneath a ...
Di2 Seatpost mounting batteries in aero seatposts such as ISP, Vector, and D-Fuse models. The holder is inserted into post beside the battery and a compression screw expands the holder to secure ...