Shimano Internal Mount Battery BT-DN300 Di2, 3-Port

The Shimano BT-DN300 Di2 Internal Mount Battery with 3 ports offers reliable power for your electronic shifting system. Designed for seamless integration within your bike frame, it ensures a clean setup and efficient energy delivery. Its three ports provide versatile connectivity options, supporting multiple Di2 components for enhanced performance and precise shifting control. Ideal for riders seeking a professional-grade battery solution that combines durability with advanced functionality.