Shimano Di2 BT-DN300 Internal Battery

The new Shimano DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 EW-SD300 ports, it delivers stable power to Shimano's 12-speed road front derailleurs and rear derailleurs (if a fully wired option is selected).

With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano's 12-speed Di2 wired option.

- Compatible with thinner next generation electric wire SD300 and systems after R9250/R8150 series
- 3 SD300 ports
- Shared fixing method with BT-DN110
- For built-in installation in the frame or seat post
- High-power lithium-ion battery
- Model: BT-DN300
- Battery: Lithium Ion
- Nominal capacity: 500mAh 3.7Wh
- Nominal voltage: 7.4V
- Compatible electric wire: EW-SD300
- Diameter: Ø17mm
- Length: 152mm

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.