Cadence sensor in-op, battery ?
11-16-18, 01:10 AM
#1
Senior Member
Thread Starter
Cadence sensor in-op, battery ?
I put in a new batt, all good.
Question Is ,
Do most replace the other sensor batts
....
(HR detector & the speed sensor batts )
When one detector batt dies ?
...making the assumption the others are near
kaput too....
Question Is ,
Do most replace the other sensor batts
....
(HR detector & the speed sensor batts )
When one detector batt dies ?
...making the assumption the others are near
kaput too....
11-16-18, 10:37 AM
#2
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My bike computer battery lasts about half as long as the speed or cadence sensor. And I get many years out of a HRM sensor battery.
But they are cheap (if you are using CR 2032) so does not hurt anything to replace all at once. Sometimes I replace all, sometimes not.
Be careful if disposing of coin type batteries that the contacts (+ and -) can't touch metal, they can short out and start a fire if they have much charge left. And if you dispose of multiple batteries at once that have some remaining charge, that is how you could start a fire. Has not happened to me but a friend of mine used to work for a battery company where they apparently did have some fires when batteries shorted out by contacting each other in the trash. If I am discarding several coin type batteries, I tape them together in such a way that they can't short each other out.
But they are cheap (if you are using CR 2032) so does not hurt anything to replace all at once. Sometimes I replace all, sometimes not.
Be careful if disposing of coin type batteries that the contacts (+ and -) can't touch metal, they can short out and start a fire if they have much charge left. And if you dispose of multiple batteries at once that have some remaining charge, that is how you could start a fire. Has not happened to me but a friend of mine used to work for a battery company where they apparently did have some fires when batteries shorted out by contacting each other in the trash. If I am discarding several coin type batteries, I tape them together in such a way that they can't short each other out.
11-16-18, 10:43 AM
#3
Senior Member
Thread Starter
Thanks
Gonna R&R the speed sensor
(a pia to get on & off hub)
Yea , 2032 (Garmin)
...Good points on disposal....
Gonna R&R the speed sensor
(a pia to get on & off hub)
Yea , 2032 (Garmin)
...Good points on disposal....
11-16-18, 10:48 AM
#4
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With my sensors there's no easy way to tell how much life the battery has left until it dies, so I just replace everything at once.
Lithium batteries are used because they provide a consistent, steady power output compared to other chemicals and with computerized devices you can't have fluctuating power outputs (something to do with molecules and chemistry and stuff that I don't understand).
The trade-off is that when they die, there's no gradual fading of power--they just suddenly die.
Lithium batteries are used because they provide a consistent, steady power output compared to other chemicals and with computerized devices you can't have fluctuating power outputs (something to do with molecules and chemistry and stuff that I don't understand).
The trade-off is that when they die, there's no gradual fading of power--they just suddenly die.
11-16-18, 05:02 PM
#5
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When you do the brake and shifter cables.
When you change the batteries in your smoke detectors.
Or something like that.
When you change the batteries in your smoke detectors.
Or something like that.
11-16-18, 05:03 PM
#6
Heft On Wheels
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I put fresh batteries in the outdoor bike every spring CR2032 battery's. Then in the winter before indoor training rides start I do it all over. I buy the battery's in larger numbers so its not quite so spendy. Its just easy upkeep. I probably change too often but never had an issue so its worth it I think. Sometimes the HR doesn't make it 6 months but the speed/cadence usually do. The Power Meter will go 5 months at the most so a 5-6 month interval is just easy insurance.
11-16-18, 08:52 PM
#7
Senior Member
Thread Starter
Convinced me,
did the HR monitor too.
All 3 have new batts, speed, cadence & HR.
Should get me thru winter .
did the HR monitor too.
All 3 have new batts, speed, cadence & HR.
Should get me thru winter .
11-19-18, 11:16 AM
#9
Randomhead
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TrainerRoad tells me the state of the batteries in my heart sensor and cadence sensor. It has been saying that my cadence sensor was down to 10 percent for a while, I suppose it will die sometime this winter. Not sure if other brands report battery charge, I suspect the better ones do. I have never checked to see if the wahoo utility reports the state of charge, but TR reporting it is good enough for me.
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