Shimano Di2 BT-DN300 internal battery

The new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs and shifters (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. The battery is compatible with thinner next generation electric wire SD300 and systems after R9250/R8150 series.

Features

• 3 SD300 ports
• Shared fixing method with BT-DN110
• Model: BT-DN300
• Series: DURA-ACE R9200 Serie
• Fixing smallparts and 3dummy capincluded
• Type: Built-in battery
• Compatible charger: TBD
• Firmware update by E-TUBE PROJECT
• Chemistry: Li-Ion
• Rated capacity (Ah): 0.5
• Rated capacity (Wh): 3.7
• Rated voltage (V): 7.4
• Seat post adapters NOT included
• Real weight: 52 g.

More information on the packaging of this article.

E-TUBE technology

E-TUBE is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and SHIMANO.