Shimano EW-EC300 Charging Cable

Shimano EW-EC300 Charging Cable Shimano
Shimano EW-EC300 Charging Cable Shimano
Shimano EW-EC300 Charging Cable Shimano
Shimano EW-EC300 Charging Cable Shimano

Shimano EW-EC300 Charging Cable

Shimano EW-EC300 Charging Cable

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What Is the Shimano EW-EC300 Di2 Charging Cable For?

The Shimano EW-EC300 is the USB-C charging cable for current-generation Di2 systems, connecting to the BT-DN300 internal Di2 battery's integrated charging port for in-frame charging without removing the battery. The USB-C connection on the charger end is compatible with any standard USB-C power source -- laptop, wall adapter, or power bank -- making it convenient for travel and daily use. Keeping a spare EW-EC300 eliminates the risk of a lost or forgotten cable causing a dead Di2 system, particularly on a cycling trip or at a race venue where alternatives aren't available.

Compatible with Shimano Dura-Ace R9250 and Ultegra R8150 Di2 12-speed systems using the BT-DN300 battery. USB-C connection on the charging end. The correct cable for all current 12-speed Di2 systems.

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Specifications

  • Model: EW-EC300
  • Type: Di2 charging cable
  • Connection: USB-C (charger end)
  • Compatible Battery: BT-DN300
  • Compatible Systems: Shimano Dura-Ace R9250 and Ultegra R8150 Di2 12-speed

FAQ

Is this cable compatible with older Di2 systems?

The EW-EC300 is for the BT-DN300 battery used in 12-speed Di2 systems. Older Di2 systems use different batteries with different charging interfaces -- the EW-EC300 is not compatible with pre-12-speed Di2 batteries.

Can I charge the BT-DN300 while the battery is installed in the frame?

Yes. The BT-DN300 is designed to be charged in-frame via the integrated charging port, which is accessed at the derailleur body or through the frame's port. This eliminates the need to remove the battery for charging.

How often does the BT-DN300 Di2 battery need charging?

Shimano rates the BT-DN300 for approximately 1,000 to 1,500km per charge depending on riding conditions and temperature. Most riders charge every few weeks during regular use.

Best For

Riders running Shimano Dura-Ace R9250 or Ultegra R8150 Di2 12-speed systems who need a replacement or spare EW-EC300 charging cable for their BT-DN300 battery.

Shimano EW-EC300 Charging Cable Reviews:

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