Shimano EW-EC300 Charging Cable - For Dura-Ace/Ultegra 12-Speed Di2 Systems

The Shimano EW-EC300 Di2 charging cable keeps 12-speed electronic drivetrains powered and race-ready with a direct connection to the internal battery junction. Designed specifically for Dura-Ace and Ultegra Di2 systems, it provides a secure fit to the charging port without adapters or workarounds. Compact enough to fit in a jersey pocket or kit bag, it's a practical item to carry on multi-day events or training camps where access to a dedicated charger may be limited.