Product Description
The Shimano BT DN320 Di2 wireless rear derailleur battery is a high performance 310mAh lithium ion power source that sits at the core of Shimano Di2 wireless shifting systems. It delivers smooth and precise gear changes while supporting consistent performance on every ride.
Built for reliability, the battery features advanced sealing and a weather resistant design that has been proven in harsh conditions including heavy rain, heat and muddy environments. Its compact and lightweight construction allows it to be housed neatly inside the rear derailleur, preserving a clean appearance while remaining easy to access for charging or maintenance.
Thanks to Shimano intelligent power management, the BT DN320 offers up to 340 kilometres of riding range per charge depending on conditions. Charging is quick and straightforward using the Shimano EC DN100 charger, making it easy to keep your bike ready to ride.
Designed for both performance and protection, the BT DN320 fits securely inside the rear derailleur to shield it from trail debris and impacts. At the same time, it can be removed quickly when recharging is needed. Whether on gravel roads or technical trails, this battery delivers dependable power and long lasting efficiency.
Compatible with the following Shimano Di2 wireless rear derailleurs
XTR RD M9250 GS
XTR RD M9250 SGS
XT RD M8250 GS
XT RD M8250 SGS
Deore RD M6250 SGS
GRX RD RX827 SGS
- Model number BT DN320
- Battery chemistry lithium ion
- Rated voltage 7.6V
- Capacity 0.305Ah 2.32Wh
- Weight approximately 26.5g
- Compatible charger EC DN100





