Colorado Cyclist
Shimano BT-DN110-A7 Di2 Battery - Built-In Type, North American Spec
- Colorado CyclistUp to 80% off through Dec 31$200Buy
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From Colorado Cyclist
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/