The Shimano EW-EC300 charging cable is designed for charging Shimano’s 12-speed Di2 Dura-Ace R9200 and Ultegra R8100 electronic gear systems. It facilitates easy and quick charging of the Di2 system’s internal battery via a USB connection125.
Key Features and Compatibility
- Compatibility: Specifically designed for Shimano’s 12-speed Di2 systems, including Dura-Ace R9200 and Ultegra R8100 series. It is also compatible with power meter cranks125.
- Charging Location: The cable connects to the rear derailleur, which houses the charging port for the Di2 system12.
- USB Connectivity: The EW-EC300 uses a USB-A connector to plug into a standard USB power supply2.
- Charging Time: It takes approximately 1.5 hours to fully charge the 7.4V Li-Ion internal battery1.
- Cable Length: The cable is 1700mm long, providing sufficient reach for convenient charging15.
