Shimano Di2 Chargers. Must purchase battery, charger, and power cable to complete the system.
- For use with Alfine Electronic, Dura-Ace 9070 and Ultegra 6770 equipped bicycles with internal batteries
- SM-BCR2 Internal battery charger is specific to the SM-BTR2 internal battery (BA9070)
- Includes USB (SM-USB1) power adapter
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
- Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
|FD/Shifter Compatibility||Dura-Ace 9070 Di2,Dura-Ace 7970 Di2,Shimano Ultegra Di2|