Powering the whole Di2 system, the Shimano BTDN300 Internal Mount Di2 Battery (SD 300 Type) has a lightweight, robust and efficient design that’s perfect for integration into high-end road bikes. Its compact size allows it to be discreetly mounted inside a seat post or frame, while its comprehensive sealing easily sees off the worst weather conditions. One charge will last approximately 1000 kilometres of use, and charging is performed via the Dura-Ace R9200 or Ultegra R8100 rear derailleurs or optional junction boxes.
FEATURES
The power house of Shimano Di2 is this long-life 7.4V Li-Ion battery
The design is lightweight, efficient and creates a robust and reliable system
Compact size allows it to be discreetly mounted inside a seatpost or frame
Excellent sealing and reliability have been proven through tests within extreme temperatures, rain, mud, and cobblestone roads
One charge gives a 1000 kilometre range (depending on conditions and front mech operation)
The lifespan endures 500 charging cycles
Reliable and secure water resistant SD300 E-tube wire connections
Charging is done via the Dura-Ace R9200 or Ultegra R8100 rear derailleurs or junction boxes
Compatible with Dura-Ace R9200 or Ultegra R8100 Di2 configurations only
Manufacturer claimed weight: 50 grams
