Built-In Battery Shimano Di2 BT-DN320

The battery is secured in an enclosed space, where it stays in place even on rough terrain. It can be removed for charging.

Technical specifications

• Model: BT-DN320
• Type: Di2 rear derailleur (wireless)
• Battery: lithium-ion
• Nominal capacity: 305 mAh / 2.32 Wh
• Nominal voltage: 7.6 V
• Compatibility: XTR Di2 RD-M9250, DEORE XT Di2 RD-M8250, DEORE Di2 RD-M6250
• Dimensions: 29 × 22 × 18 mm
• Weight: 22 g