For charging internal SHIMANO DI2 batteries (BT-DN110), the SM-BCR2 also serves as a PC interface device for E-TUBE PROJECT firmware updates and adjustments.
The robust and functional Standard Charger 4 A is Bosch’s most versatile charger. It offers an ideal balance of power, size and weight, and is highly versatile.Mains voltage: 230 VDimensions: 190 x 86 x 54 mmWeight: with cable approx. 800 gramsCharging time: approx. 2.5 h for PowerPack300, approx. 3.5 h...
External Di2 Battery Mount BM-DN100
External battery mount SM-BTR1
Required to establish a wireless connection between the Di2 system and the e-Tube app
Backward compatibility: allows you to use all Di2 wireless features on older Di2 groups at a lower cost