So you’ve installed Shimano’s Di2 electronic shifting on your bike. The shifting is crisp and precise, the cables routed invisibly through the frame, and the battery… well, it’s kind of clunky.  You can mount it at the bottle cages, or maybe there’s a spot for it on the down tube or chain stay… Either way, it isn’t the prettiest thing in the world.

Enter our Di2 Batteries. Designed to hide inside your seat post, they’re compact, last 50% longer than the standard Shimano Di2 battery, and are lighter to boot.

And the cherry on top?  No charger required! We’ve designed and integrated a USB smart-charging module into each of our batteries. So you can charge your Di2 battery with the same cable as your smart phone.

For a truly custom install, we offer a kit that includes the battery as well as a micro USB port assembly for external charging.  The finished product combines the cleanliness of an internal battery with ease of charging.  If you’re having a frame custom built, this is the ultimate in Di2 batteries.

For Dura-Ace, you can either purchase a pre-modified harness from us, send us your own harness, or splice one of our connectors into your existing harness (basic soldering skills required).

The forthcoming Ultegra Di2 will be a simple plug-and-play system.