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The Shimano BT-DN320 Battery is a tiny powerhouse that tucks neatly inside the XTR rear derailleur, delivering long-lasting wireless shifting energy while staying completely protected from trail impacts. This removable 305-310 mAh battery powers lightning-fast, buttery-smooth XTR shifts while creating a clean setup that keeps cables out of the equation, letting riders focus on their ride!
Three SD300 ports support full or semi-wireless 12-speed setups.
E-TUBE PROJECT compatible for firmware updates.
Ideal for road, gravel, and endurance cycling with Di2 drivetrains
Output – Li-Ion chemistry delivers stable 7.4V
Capacity – 0.5 Ah (3.7 Wh)
Battery Type – Lithium-Ion
Compatibility – Shimano Di2 R9250, R8150, R7150, RX825 series; SD300 wires
Compact Di2 battery mounts cleanly inside seatpost or frame.