By A Mystery Man Writer
Shimano Di2 External Battery Mounts. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions.
Review: Shimano Ultegra Di2 6870 11-spd groupset
SHIMANO Built-In Type Di2 Battery [SD300 Type]
Universal Cycles -- Shimano SM-BCR1 External Di2 Battery Charger [ISMBCR1, ISMBCC12]
Pro Di2 Internal Battery Holder for Fork Steerer
Review: Shimano Ultegra Di2 6870 11-spd groupset
Shimano Di2 SM-BTR2 Internal Battery, www.glorycycles.com/s…
Converting to Di2 for Specialized owners?, Page 2
Universal Cycles -- Shimano EW-EC300 Charging Cable [IEWEC300A]
For TREK Emonda SL SLR Seatpost Di2 Internal Battery Mount Adapter
Hands On Bike: Focus Paralane: Seat Post and Di2 Battery
Shimano STEPS Di2 EW-EX010 Adapter for Bosch Ebike Drive Unit
The Shimano Di2 BM-DN100 External Battery Mount - Long allows for mounting the BT-DN110 battery to the frame's water bottle cage mounts with external wiring. The mount allows for wireless communication with the EW-WU101 wireless data transmitter unit and Bluetooth components. Battery sold separately.
Shimano BMDN100 Di2 Long Battery Mount for External Wiring
Universal Cycles -- Shimano Di2 Tube Dummy Plug [Y6VE15000]
Universal Cycles -- Shimano EW90-A/B Di2 Junction Box Band [Y7FE00040]