Shimano BT-DN300 Built-In Battery

With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames, ensuring a clean aesthetic.

HIGHLIGHTS

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.

FEATURES

• Compatible with thinner next-generation electric wire SD300 and systems after the 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

SPECIFICATIONS

• Model No: BT-DN300
  
• Series: SHIMANO
  
• Type: Internal battery
  
• Chemistry: Li-Ion
  
• Rated voltage (V): 7.4
  
• Rated capacity (Ah): 0.5
  
• Rated capacity (Wh): 3.7
  
• Compatible charger: RD-R9250, RD-R8150, RD-R7150, RD-RX825
  
• Master unit: ✔
  
• Firmware update by E-TUBE PROJECT: ✔
  
• SD50 port (pcs): 0
  
• SD300 port (pcs): 3
  
• SD50 connector (pcs): 0
  
• SD300 connector (pcs): 0
  
• Average weight: 52