Shimano Dura-Ace Di2 Battery
At a feather light 71g, the DI2 battery pack powers your entire system. On average, the battery can hold a charge for 1000 miles. Your current battery charge level can be checked through the front wire kit.
Product Features
- Lithion-Ion 7.4V technology is extremely reliable
- The high performance battery will keep you bike shifting for an average of 1000 miles per charge
- Fits any road bike & has a quick release for easy charging
Doesn’t last as long as I expected This is an update to the review below. What I have learned is that if I leave the battery plugged in while the bike is stored, the battery will run down. By unplugging the battery after each ride it holds its charge much longer. That said, I still take my new spare battery with me on every ride, so if the one that’s plugged in runs down on the ride I can just swap out the fully charged battery and finish the ride. I am upping the rating from three stars to four stars. I’d give it five, but it…
Great Insurance!