Shimano Di2 BT-DN300 Internal Battery

Shimano battery compatible with Di2 components: Ultegra / Dura Ace

The DN300 battery features the same sealed design as the previous models, which were widely appreciated by users. Now with 3 ports, it provides stable power to Shimano 12-speed derailleurs and levers. With the same size as the previous model, the slim DN300 battery can be housed inside the seatpost or the frame, for more aesthetics.

Please note that the battery is a consumable product. The charge capacity of the battery gradually decreases after repeated use and as time passes.
If the operating time of the battery decreases a lot, it means that its service life is coming to an end; then you have to buy a new battery.
Battery life varies depending on factors such as method of storage, usage conditions, usage environment, and characteristics of the individual battery pack.

The + product:

• Long-lasting battery more than 2000 km of capacity at full charge
• Easy mounting and dismounting for charging
• Average charging time around 1h30
• High performance Li-Ion battery
• Rated voltage: 7.4V
• Nominal capacity: 3.7 Wh / 500 mAh
• Weight: 52g
• Reference: IBTDN3001

Compatible groups:

• Shimano Dura Ace Di2 9200
• Ultegra Di2 8100

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