The power house of Shimano Di2 is a long-life 7.4V Li-Ion battery that is both compact and reliable, taking shifting effort away from you
Excellent sealing and reliability have been proven through repeated field tests in various riding conditions, including extreme temperatures, rain, mud, and cobblestone roads
The use of a single small and discreet internal battery is lightweight, efficient and creates a robust and reliable system
One charge gives a 1000-kilometre range depending on conditions and front mech operation (as this is the main power drain)
500 times rechargeable life
The battery is to be mounted with seatpost or frame/fork manufacturer hardware normally inside the seatpost or seat tube/fork steerer
Reliable and secure water-resistant SD300 E-tube terminals connection
Charging is done via stem junction or handlebar display
Battery weight is 50 grams