My relatively new Garmin GSC 10 Speed/Cadence unit has started losing connection to my Garmin 500. I'm assuming that the battery is running out, since I'm still using the original that came with it. I have done about 35 hours of riding.
So I am wondering: how long should a CR 2032 battery last?
I know this is a little subjective and will depend on ambient temperature and to a lesser extent speed and cadence for transiently illuminating the LED each pedal stroke/wheel revolution. But generally, how many hours can I expect to get from a battery?