Shimano BTR2 DI2 Internal Battery


0 Reviews | Write a Review

Our Price $159.99

Reward Members Earn: $1.59

Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system.
  • Compatible with Dura-Ace 9000 and Alfine Di2 equipped bicycles
  • Due to E-tube wires SM-BTR2 Internal Battery is not compatible with Dura-Ace 7970
  • Charges with USB power adapter (SM-USB1), QBP part CY9071
  • Not compatible with Ultegra EW67-A-E (CY6780)
  • Not compatible with Dura-Ace 7970 Di2 systems
  • 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
Item Specifications
Shifter/Derailleur CompatibilityDura-Ace 9070 Di2,Shimano Ultegra Di2,Dura-Ace 7970 Di2


There are no reviews yet. Be first to Write a Review (requires login).




Stay in the Loop

Sign up to keep informed and
receive exclusive deals!

Need Help?

Talk to our friendly assistants to
identify and address your specific needs.
Live Chat

Worry Free Guarantee

If a product you purchase from us fails to meet your
expectations, return it to us within 60 days of purchase
for an exchange or full refund of the product purchase
price.* Read more