Shimano SM-BTR1 Di2 External Battery

This is the Shimano SM-BTR1 Di2 Battery.

• Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems
• Weighs only 71g
• Lasts around 1,000 miles on average
  

Specifications:
Type: Lithium Ion
Nominal Capacity: 530 mAh
Weight: 71g
Operating Temperature Range: -20 - 60°C (when discharging), 0 - 45°C (when charging)
Storage Temperature Range:  -20 - 60°C
Nominal Voltage: 7.4V

This product was added to our catalog on July 26, 2014