Shimano’s next-gen cylindrical battery that can be mounted in various positions internally on road bikes and mountain bikes, such as the seat tube. For your Di2 drivetrain use, with 3x SD300 ports.
100% genuine Shimano battery. Made in Japan.
SPECIFICATIONS
Model: BT-DN300
Type: Internal battery
Chemistry: Li-Ion
Rated Voltage: 7.4
Rated Capacity: 0.5Ah