Shimano Di2 Internal Battery BT-DN110-A

– Internal lithium ion battery
– To be used with prepared seatposts or adapters
– Battery capacity: 3.7Wh
– Battery voltage: 7.4V
- Battery capacity: 500mAh
– Compatible charger: SM-BCR2
– Dimensions: Ø17 mm – length 160 mm
– Charger and cables not included
– With adapters and sealing rings
– Weight (manufacturer): 52 gr.

Only use the Shimano SM-BCR2 battery charger