Shimano BCR2 Charger for Internal Di2 Battery

The Shimano BCR2 Charger for Internal Di2 Battery is for use with Alfine Di2, Dura-Ace 9070, R9100 and Ultegra 6870/6770 equipped bicycles. The SM-BCR2 Internal battery charger is specific to the SM-BTR2 and IBTDN1101 internal battery (BA9075) and includes USB (SM-USB1) power adaptor.