Originally Posted by
Tourist in MSN
Every cadence sensor or sensor for a wheel magnet that I have used was zip tied to the bike. USB rechargeable would suggest adding a quick release bracket to remove it and put it back in the same exact place later. Yeah, it is possible, but it adds complications.
It is rare when I need to replace a battery in a cadence or wheel sensor more than once in a season, a few times I have had to do it twice in a season but that was rare.
If the OP that posted this six years ago still has a problem, maybe try to find an old wired computer, I found the batteries in wired ones to last much longer than wireless. I often get a few years in a wired one.
My Wahoo sensors has a rubber case that is zip tied to the crankarm. The actual unit comes out easily enough. It wouldn't be that hard to charge it attached to the bike either. My Assioma pedals charge that way, and the pedals also act as a cadence sensor. I split the unit up with the cadence on my commuter bike and the speed sensor mostly on my road bike. The speed sensor goes on and off easily too.