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Shimano SM-BTR1 Di2 External Battery

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Shimano SM-BTR1 Di2 External Battery
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Price: $89.99
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This is the Shimano SM-BTR1 Di2 Battery. 

Features:

  • 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

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