Shimano's EC-DN100 Di2 Wireless Battery Charger is the essential tool for keeping your Di2 drivetrain ready to perform. Designed specifically for the BT-DN320 wireless battery, it delivers reliable charging through a direct USB-C connection, ensuring your system stays powered for smooth and precise electronic shifting. With a long-life lithium-ion cell at its core, this charger helps maintain the health and performance of your drivetrain.Key Features and Benefits:Designed for the Shimano BT-DN320 Wireless Battery: Built to charge Shimano's 310mAh Di2 battery used in 12-speed systems. This ensures optimal compatibility and charging efficiency, helping avoid potential performance issues caused by using non-specific chargers.Direct USB-C to USB-C Charging Connection: The included USB-C to USB-C cable offers a fast, stable connection. This reduces charging time and increases convenience when used with modern charging ports, helping you get back on the bike sooner.Supports Long-Life Lithium-Ion Battery Maintenance: The EC-DN100 is tuned to preserve battery integrity. This keeps the 310mAh battery at peak condition for longer, extending its lifespan and ensuring consistent Di2 shifting.Compact and Lightweight Design: Easy to pack and store, the charger fits neatly into toolkits or travel bags. This portability ensures your Di2 system can be maintained wherever you are, supporting performance on the road or trail.This charger is specifically for the Shimano BT-DN320 battery, to ensure their electronic shifting remains fast, accurate, and consistent. This compatibility safeguards against charging faults and extends the useful life of a vital drivetrain component.Keep your Di2 system charged and ready with a solution made for the job. The EC-DN100 gives you peace of mind, performance support, and the confidence that your setup is powered by the right tool.