Shimano BT-DN110A1 Internal Di2 Battery

Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/ Product Specifics keyword search: BT-DN110 keyword search: replaces BA9075 Shifter/Derailleur Compatibility: E-Tube Shifter/Derailleur Compatibility: Shimano Ultegra Di2 Shifter/Derailleur Compatibility: Dura-Ace 7970 Di2 Shifter/Derailleur Compatibility: Dura-Ace 9070 Di2 Today's Stock StatusCurrently not available UPC: 689228329157 EAN: Not available Manufacturer Part Number: IBTDN110A1 BA9071 153754-Q0-L