Battery Shimano BT-DN300 (Di2)
Modern Di2 battery with 3 ports, stable performance and easy integration. Designed for Shimano 12-speed systems and internal installation.
Overview
Battery Shimano BT-DN300 (Di2)
The Shimano BT-DN300 is a next-generation lithium-ion battery designed for Shimano 12-speed Di2 electronic shifting systems. Its compact and waterproof design allows seamless internal installation inside the frame or seatpost, ensuring a clean look and excellent protection from external elements.
This updated battery features 3 SD300 ports, simplifying wiring while delivering stable and reliable power to both front and rear derailleurs. The third port provides additional flexibility for riders who prefer a fully wired Di2 setup, improving redundancy and system reliability.
Maintaining the same dimensions and mounting system as its predecessor, the BT-DN300 is easy to integrate or upgrade. It delivers consistent performance even in demanding conditions, making it an excellent choice for both performance road cycling and racing applications.
- Model: BT-DN300
- Type: Built-In
- Battery: Lithium-ion
- Capacity: 500mAh / 3.7Wh
- Nominal voltage: 7.4V
- Ports: 3 x SD300
- Compatible wire: EW-SD300
- Operating temperature (discharge): -10°C to 50°C
- Operating temperature (charging): 0°C to 45°C
- Dimensions: Ø17 mm, length 152 mm
- Compatibility: Dura-Ace Di2 R9250, Ultegra Di2 R8150
- Weight: approx. 52 g
The Shimano BT-DN300 battery ensures stable power delivery and smooth, precise electronic shifting for modern 12-speed Di2 systems.
