Which battery to replace for VDO wireless cyclometer?
 

My VDO wireless computer stopped registering speed and elapsed time. Which battery, cadence marker or handlebar unit needs a new battery?

I replaced both of them a few months ago and it is a little expensive to do both replacements every few months.

Not sure where you are located but locally I can get the 2032 batteries 2 for $3 at frys electronics. Just after christmas I picked up a 20 pack of led tealights which came with 20 spare 2032 batteries for $10. That being said when I was using the VDO on my primary bike (pre-garmin edge) I would get over a year out of the batteries (@4k miles)