he Shimano EW-EC300 Charging Cable 1700mm allows quick and easy charging of the 12-speed Di2 Dura-Ace R9200 and Ultegra R8100 gear systems. One end plugs into a USB power supply socket, while the other end plugs into the integrated charging port on the Dura-Ace RD-R9250 or Ultegra RD-R8150 rear derailleurs. As a result, full charging of the powerful, long-life 7.4V Li-Ion internal battery is complete within 1.5 hours.
FEATURES
A charging cable for Shimano Dura-Ace R9200 and Ultegra R8100 Di2 12-speed gear setups
Charges the powerful long-life 7.4V Li-Ion internal battery
Plugs in directly to Dura-Ace RD-R9250 or Ultegra RD-R8150 rear derailleur
The other end is USB
1.5 hour charge time