Shimano SM-BTR1 - Di2 Battery Pack

Rechargeable battery pack for electronic Di2 shifting system.

A quick mount bracket (not included) allows for easy installation on many types of frames. The battery pack is extremely reliable and proven in long test series under various riding situations and weather conditions. The Li-Ion battery offers high power and a long service life.
Included in delivery: battery pack only
charger, wires and bracket not included!