Shimano BT-DN320 Di2 battery

Power your 12-speed Di2 drivetrain with the SHIMANO BT-DN320 battery. This compact, built-in lithium-ion cell (310 mAh) offers exceptional longevity, supporting thousands of kilometers on a single charge for worry-free epic rides and races. Its integrated design within your seatpost or rear derailleur ensures unwavering reliability and protection from the elements and impacts, providing a stable power supply for flawless, instantaneous gear changes. Simplified charging and a streamlined system create a cleaner, more aerodynamic setup