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 https://e-tubeproject.shimano.com/
- The Shimano Di2 Internal Battery is designed to fit with internal mounts, offering a hidden solution for Shimano Di2 drivetrains
- Li-Ion battery power
- Must be used with E-tube wires only
- Not compatible with 7970 DI2
- This product is brand new, never mounted, and is exactly as pictured. It does not include any additional, non pictured, parts or retail packaging.