Shimano Di2 Battery BT-DN300 Tifosi Immediately improves comfort

Immediately improves comfort

Disc road rotor for reliable stopping power in all conditions

Superior moisture wicking fibers keeps skin fresh

cycling awareness and smart connectivity

Shimano Di2 Battery BT-DN300 Tifosi Immediately improves comfortThe new Shimano Di2 BT 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). The same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean external aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear