The Shimano BT-DN110 Internal Battery forms an integral part of the Shimano Di2 wireless shifting system

The Shimano BT-DN110 Battery is the power source for Shimano's Wireless E-Tube Di2 system, which enables wireless shifting.

Mounted internally and boasting built-in Bluetooth capabilities, the Shimano BT-DN110 battery, when combined with Shimano's specific connectivity junction box, allows users to make shifts wirelessly.

Working in concert with Shimano’s new wireless-enabled and compatible Di2 components, the new Shimano E-Tube Project iOS and Android compatible app allows riders to customize and infinitely fine-tune their shifting on the tarmac or trail.

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