Free Shipping

For domestic orders over $75.00. Discount applies to other orders. For full restrictions see store policies.

Registered Users get free shipping for purchases over $50.00!

Shop by Brand

Shimano Authorized Retailer FIST Certified

Shimano Di2 BTR1 E-Tube External Battery

Availability:In Stock (31 Available)
Your Price:$75.99

Instant Price Match

AEBike Part Number: BA7970
Manufacturer:  Shimano
Manufacturer Part Number: ISMBTR1A
UPC: 689228289635

Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system
  • Use Di2 system checker to update component firmware from
  • All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
  • Battery weighs 71g
  • Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems
Item Specifications
Shifter/Derailleur CompatibilityDura-Ace 7970 Di2
Shifter/Derailleur CompatibilityDura-Ace 9070 Di2
Shifter/Derailleur CompatibilityShimano Ultegra Di2
76 points will be rewarded for our loyalty program when this product is purchased.

Browsing History

More Testimonials...
Winter tuneup special!

Bring your bike in before March to get a full overhaul at the price of a tune-up, and we'll store the bike til Spring!

More Shop News...