The Shimano BT-DN320 is the rechargeable lithium-ion battery for Shimano's wireless Di2 rear derailleurs. It mounts internally inside the derailleur body and is removed for charging via the EC-DN100 USB-C charger (sold separately).

Fits

  • RD-M9250 (XTR Di2)
  • RD-M8250 (Deore XT Di2)
  • RD-M6250 (Deore Di2)
  • RD-RX827 (GRX Di2)
  • E-BIKE rear derailleurs RD-M9260, RD-M8260, RD-M6260
Covered by Shimano's spare-parts warranty against manufacturing defects. For any warranty claim or support, return the item to Tune Cycles and we will handle the process for you.
  • Rechargeable lithium-ion battery for wireless Di2 rear derailleurs
  • Mounts internally inside the derailleur body
  • 7.6V, 305mAh / 2.32Wh, approx. 22g
  • Removable for charging via the EC-DN100 USB-C charger (sold separately)
  • Fits RD-M9250, RD-M8250, RD-M6250, RD-RX827, and E-BIKE RD-M9260/M8260/M6260
Part numberBT-DN320
TypeRechargeable lithium-ion battery, internal (wireless Di2 rear derailleur)
Voltage7.6V
Capacity305mAh / 2.32Wh
WeightApprox. 22g
ChargerEC-DN100 (USB-C, sold separately)
FitsRD-M9250, RD-M8250, RD-M6250, RD-RX827; E-BIKE RD-M9260, RD-M8260, RD-M6260
SKU SHM-IBTDN320A
Barcode # 4550170748494
Brand Shimano