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Shimano Di2 BT-DN320 accumulator – internal wireless battery for Di2 systems, mounted in the derailleur for reliability and protection.
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incl. 20% VAT excluding delivery price.
The Shimano Di2 BT-DN320 is a compact internal battery designed for Di2 wireless systems. It mounts directly into the rear derailleur, where it is protected from shocks, vibrations, and weather conditions, while remaining easily removable for charging or replacement.
With a capacity of approximately 305 mAh (2.32 Wh) and a voltage of 7.6 V, this battery provides extended riding time between charges and ensures precise and reliable shifting. The integrated design eliminates the need for external mounts and cables, giving the system a clean look.
Technical Specifications
Voltage: 7.6 V
Capacity: ~305 mAh / 2.32 Wh
Mounting: internal, built into the rear derailleur
Mobility: fully removable for charging or replacement
Compatibility: Shimano Di2 wireless systems