SHIMANO Battery Di2 BT-DN110A6 built-in 1-port

The BT-DN110 lithium-ion battery can be mounted indoors or outdoors. Internal mounting is in the head tube or seat post. External mounting requires the SM-BTC1 battery holder. The battery provides long life and high performance (up to 2,000 km on a single charge). Diameter: Ø17 mm; length 160 mm. Capacity: 500 mAh. Bluetooth technology allows riders and mechanics to communicate wirelessly with the EW-WU101 unit or SC-MT800 display using a computer, tablet or smartphone, allowing you to make small workshop adjustments or gear adjustments.

Type: UNI, Total package weight: 129g, Internal, black, Di2