Shimano BT-DN110-A Di2 Battery

Reliable, lightweight and compact, the Shimano BT-DN110-A Di2 Battery can be installed at various points on your bike and works with all modern Shimano Di2 electronic drivetrain components and E-Tube type wiring. A genuine replacement, the Shimano BT-DN110 Di2 battery is also suitable for use with the Shimano SM-BCR2 charger.