SHIMANO Ultegra Dura Ace Di2 Etube Builtin Type Battery

The SHIMANO Ultegra Dura Ace Di2 Etube Builtin Type Battery is a rechargeable lithium-ion battery designed for use with SHIMANO Di2 electronic shifting systems. Its primary function is to supply consistent power to compatible Ultegra and Dura Ace Di2 drivetrains, supporting reliable electronic gear changes for road cycling. This battery is intended for internal (builtin) installation within the bicycle frame.

• Brand: SHIMANO
• Compatible with Ultegra and Dura Ace Di2 electronic shifting systems
• Etube platform connectivity
• Rechargeable lithium-ion cell
• Internal (builtin) frame mounting type
• Carbon Black color
• Supports multiple shift operations per charge
• Designed for road cycling applications
• Typical installation in seatpost or downtube (model-dependent)

Technical note: Proper installation and charging require SHIMANO-approved Etube wiring and compatible Di2 system components. Battery performance and compatibility may vary based on drivetrain model and firmware version.

Available Variants: