Shimano SM-BTR1 Di2 External Battery

Price: $75.99 (Save 21%)
Sale: $59.99
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Expected to arrive Monday, September 14 2020
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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

Lithium Ion
Nominal Capacity:
530 mAh
Operating Temperature Range:
-20 - 60°C (when discharging), 0 - 45°C (when charging)
Storage Temperature Range:
  -20 - 60°C
Nominal Voltage:

    Sizing     Sizing

This product is expected to arrive on Monday, September 14 2020