Shimano BT-DN300 Di2 Battery 12 Speed Echelon 5:1 combination of fructose and

5:1 combination of fructose and glucose/maltodextrin

It’s safe on all surfaces

Keep your wireless drivetrain performing at its best with the SRAM RED eTap AXS Replacement Derailleur Battery

Thanks to disc brakes

Shimano BT-DN300 Di2 Battery 12 Speed Echelon 5:1 combination of fructose andThe Shimano BT DN300 Di2 Battery (12 Speed) features the same waterproof design Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12 speed road derailleurs and shifters when a fully wired option is selected. The same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames for a clean aesthetic. The third port is for riders who want the redundancy of Shimano's 12 speed Di2