Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.
|Charger for Internal-style Battery- With USB Cable||689228725621||ISMBCR2||14931|
|Charger for External-style Battery- Without Cable||689228289642||ISMBCR1|