Shimano Di2 integrated type battery [SD300 type] BlackThe new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it provides stable power to Shimano's 12-speed road derailleurs and shifters (if fully cabled option selected).The same size as its predecessor, the slim DN300 battery can be housed inside seatposts or frames, ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to the derailleur and rear derailleur, delivering stable power at all times. The third port is for riders looking for the redundancy of Shimano's cabled 12-speed Di2 option.Characteristic:
- Compatible with next generation thinner power cord SD300 and later R9250/R8150 series systems
- 3 SD300 ports