Skip to main content

We are closing the De Anza location and are moving to Santa Clara. The remaining inventory will be moved and will reopen on October 31. (Due to internet connection issues) The web site inventory will be corrected to show only what we have in stock, and pick ups will be by appointment. 

Thank all of you wonderful customers for the last 33 years, under my ownership and 69 years in total!

Vance, crew and Daisy (2009-2021)

  1. Home
  2. Bicycling
  3. Accessories
  4. Electronics
  5. Parts & Accessories
  6. Shimano

Shimano BT-R1A External Di2 Battery

Shimano BT-R1A External Di2 Battery
This item is currently not available.

Details

Shimano BT-R1A External Di2 Battery

- 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
- Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems
- Battery weight: 71 grams

Reviews