Shimano BCR2 Charger for internal Di2 Battery w/Charging Cord EA Shifter Battery Charger

All Di2 components on the bicycle require the same firmware version Using Di2 components with different firmware versions may cause malfunctions For use with Alfine Di2, Dura-Ace 9070, R9100 and Ultegra 6870/6770 equipped bicycles SM-BCR2 Internal battery charger is specific to the SM-BTR2 and IBTDN1101 internal battery (BA9075) Includes USB (SM-USB1) power adaptor Plugs into SM-EW90 cockpit junction boxes or SC-S705 display unit Use with PC to update Di2 component firmware and change system functions with software from www.e-tubeproject.shimano.com