Shimano Di2 battery charger — the wall-plug-to-battery interface for electronic shifting. You plug this into the Di2 battery over a length of Di2 wire to top up charge; a multi-season accessory that handles charging across successive battery and groupset generations. This is the Shimano EW-EC300 Charging Cable.
Battery Charger
¥ 6,700
Shimano Di2 battery charger — the wall-plug-to-battery interface for electronic shifting. You plug this into the Di2 battery over a length of Di2 wire to top up charge; a multi-season accessory that handles charging across successive battery and groupset generations. This is the Shimano EW-EC300 Charging Cable.

Recommended products
Shimano
Battery Charger EC-DN100
¥ 4,900 ¥ 6,600
Shimano
¥ 4,900 ¥ 6,600
Battery Charger EC-DN100
Shimano
Shimano DI2 EW-SD50 E-Tube Wires
¥ 2,700 ¥ 4,200
Shimano
¥ 2,700 ¥ 4,200
Shimano DI2 EW-SD50 E-Tube Wires
Shimano
Shimano - EW-JC130 Y Split
¥ 6,900 ¥ 9,800
Shimano
¥ 6,900 ¥ 9,800
Shimano - EW-JC130 Y Split

Shimano
Shimano EW-EC300 Charging Cable
Shimano
Shimano EW-EC300 Charging Cable