The Shimano Di2 BT-DN300 Built-In Battery is a state-of-the-art power solution designed for cyclists who demand the highest performance from their electronic shifting systems. This slim and efficient battery is built for internal mounting within frames or seat posts, ensuring a clean and aerodynamic aesthetic without compromising functionality.
Maintaining the renowned waterproof design that Di2 users trust, the BT-DN300 comes equipped with three EW-SD300 ports, simplifying the wiring process to both front and rear derailleurs, delivering stable and reliable power at all times. The added third port provides redundancy for those opting for Shimano's fully wired 12-speed Di2 option, enhancing performance and reliability during every ride.
The BT-DN300 features a high-power lithium-ion battery with a nominal capacity of 500mAh and a nominal voltage of 7.4V. Compatible with the next-generation EW-SD300 electric wires, this battery works seamlessly with Dura Ace Di2 R9250 and Ultegra Di2 R8150 systems. The E-Tube platform further enhances flexibility and ease of maintenance, ensuring that your bike remains in peak condition with minimal effort.
Specifications:
- Built-In battery designed for internal mounting
- Featires a high performance Lithium-Ion battery with a capacity of 500 MAh
- Compatible with both Shimano Dura Ace Di2 R9250 and Shimano Ultegra Di2 R8150
- Made to be used with EW-SD300 electric wires
- Has a diameter of 17 mm and length of 152 mm
- Weighs just 52 grams
- Ideal Operating temperature range: Discharge: -10 °C to 50 °C Charging: 0 °C to 45 °C
- Has a waterproof design to ensure riding comfort in harsh weather conditions
- Supports stable power supply for 12-speed front and rear derailleurs (when fully wired)
- E-Tube platform provides flexibility and low maintenance Plug-and-play connection
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