New Shimano Di2 External Battery // SM-BTR1 Dura-Ace // Ultegra / E-tube system

SKU: 

689228289635

$84.99 Regular price $121.99

 

Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system.

  • 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/
  • Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems
  • Battery weighs 71g