Originally Posted by
oldnslow2
The shifters use coin size batteries that will last a year. The derailures last 1000k and are interchangeable.
Allegedly last a year. Obviously depends on how much you ride and how much you shift. Based upon how often I replace 2032 batteries in my QuarQ, and Vector pedals, (which admittedly are in more constant use) I'd wager its more frequent than yearly if you ride a lot.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.