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Equipment > Components > Brake Levers > Electronic Supplies


With the 12-speed Di2 component system release, Shimano also introduced a new Di2 charging system set-up. The EW-EC300 charging connector is designed specifically for Shimano's 12-speed Di2 road drivetrains and it is connected via a proprietary magnetic port on the rear derailleur, while having a USB-A connection on the other end of the 1.5 meter cable. The EC300 is also compatible with Shimano 12-speed power meters and is much simpler to use and less expensive than previous chargers.

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  • Power cord for charging the 12-speed Shimano Di2 system as well as the FC-R9200-P powermeter crankset
  • Features two ends:
    • Proprietary magnetic pin connection for use on the 12s rear derailleur (which is wired to the internal seatpost battery) or via port on FC-R9200-P (for it's internal battery)>/li>
    • USB-A connector for power source
  • BT-DN300 Internal seatpost battery ratings: Capacity [Ah] 0.5 / [Wh] 3.7, Voltage 7.4V
  • Length: 1.5 meters
  • Color: Black
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