Shimano BT-DN300 Di2 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.

Specifications:

• Model: BT-DN300
• Series: Dura Ace R9200
• Average weight: 52g
• Type: Built-in battery
• Compatible charger: RD-R9250, RD-R8150, RD-R7150
• Firmware update by E-Tube project: ✔
• Master unit: ✔
• Chemistry: Li-Ionli>
• Rated capacity (Ah): 0.5
• Rated capacity (Wh): 3.7
• Rated voltage (V): 7.4
• SD300 port (pcs): 3

Features:

• Compatible with thinner next generation electric wire SD300 and systems after R9250/R8150/R7150 series
• 3 SD300 ports
• Shared fixing method with BT-DN110

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