Shimano BT-DN110-A Di2 Internal Battery

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The Shimano BT-DN110-A is the official internal battery for Shimano Di2 electronic shifting systems. Compact and lightweight, it is designed for seamless integration inside seatposts or frames, maintaining a clean and aerodynamic appearance. Featuring a long-lasting lithium-ion cell and intelligent battery management, it ensures reliable power delivery and supports Shimano’s Synchro Shift function for precise, coordinated front and rear shifting. Perfect for both road and mountain Di2 setups.

Model: BT-DN110-AType: Built-in Internal BatterySystem Compatibility: Shimano Di2 (11-Speed / 12-Speed)Function Support: Synchro Shift compatibleBattery Type: Rechargeable Lithium-IonVoltage: 7.4VCapacity: 500 mAhMount Location: Internal (seatpost or frame)Charging Method: Requires SM-BCR2 Charger (sold separately)Use: Road / MTB / Gravel Di2 SystemsWeight: Approx. 50 g