Shimano Di2 BT-DN300 internal battery

The new DN300 battery offers the same waterproof construction that Di2 users have loved for generations. Now equipped with 3 ports, it provides stable power to the front derailleurs. and Shimano 12-speed road gears (with the fully wired option).
With the same dimensions as the previous model, the slim DN300 battery can be housed in seat posts or frames, ensuring a clean aesthetic.
Now featuring 3 ports, the DN300 simplifies wiring to the front and rear derailleurs, providing stable power.
The third port is for those who want the redundancy of Shimano's 12v Di2 wired option. The battery is compatible with the thinner new generation SD300 electrical wire and with subsequent systems to the R9250/R8150 series.

Characteristics

• 3 SD300 ports

• Fixing method shared with BT-DN110

• Model: BT-DN300

• Series: DURA-ACE R9200 Series

• Fixing parts and 3 pins included

• Type: Built-in Battery

• Compatible Charger: TBD

• Firmware updated by E-TUBE PROJECT

• Chemical composition: Lithium ions

• Rated capacity (Ah): 0.5

• Rated capacity (Wh): 3.7

• Rated voltage (V): 7.4

• Actual weight: 52 g.

E-TUBE technology

E-TUBE is the Shimano "service" that uses websites or apps to maximize the pleasure of cycling by connecting riders, bikes and Shimano.