Originally Posted by
tatfiend
Per some Cateye manuals I have wired compute batteries should go about three years and wireless one year, dependent on usage. The average is listed for 1 hour use per day as I recall.
My experience is that number is very conservative. I use my bikes well over 1 hour a day and the batteries still last much longer.
And that was the OEM batteries which, IIRC, were Panasonics, and are not junk.