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 supplies stable power to 12-speed Shimano road front and rear derailleurs (with the fully wired option).
With the same dimensions as the previous model, the slim DN300 battery can be housed in seatposts or frames for a clean appearance.
Now equipped with 3 ports, the DN300 model simplifies wiring to the front and rear derailleurs, providing stable power.
The third port is for those who want the redundancy of Shimano's wired Di2 12-speed option. The battery is compatible with the thinner, new-generation SD300 electric wire and systems after the R9250/R8150 series.

Features

• 3 SD300 ports
• Mounting method shared with BT-DN110
• Model: BT-DN300
• Series: DURA-ACE R9200 Series
  
• Type: Built-in battery
• Compatible charger: TBD
• Firmware updated via E-TUBE PROJECT
• Chemical composition: Lithium-ion
• 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 maximise cycling enjoyment by connecting riders, bikes and Shimano.

Please note: the product may be shipped in OEM (After Market) packaging.

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.