SHIMANO BT-DN110A-7 Built-In Type Di2 Internal Battery

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.

Compatible with EW-SD50 Di2 Wire

SD50 connection port
Waterproof design
Compatible with SM-BCR2 charger

Battery Chemistry: Li-Ion
Rated Voltage: 7.4V
Rated Capacity: 0.5 Ah / 3.7Wh
Port: SD50
Weight: 51g

Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.