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Shimano Di2 SM-BTR1 Battery PackWhat you need to know: Ultegra Di2 Conversion
This 7.4V, high-performance Lithium Ion battery will keep your Di2 system supplied with power no matter what. Field tested and proven to deliver reliable performance in even the worst weather conditions, the rechargeable Di2 battery holds a 1000km charge, regardless of how often you shift. Lithium Ion technology is lighter, more compact and better performing than other power sources. Mounting bracket easily adapts to all road bikes and allows Di2 battery to be removed easily for charging.
- Proven to deliver reliable performance in all conditions
- Rechargeable Di2 battery holds a 1000km charge, even when circumstances require consistent and frequent shifting
- Lithium Ion technology is lighter, more compact and better performing than other power sources
- Mounting bracket easily adapts to all road bikes
- Battery can be removed easily for charging
Shimano Di2 SM-BTR1 Battery Pack
- Shimano Dura Ace Di2 and Ultegra Di2 groups
- Shimano Dura-Ace Di2 7970 Gruppo