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Solved: Cadence Sensor Battery Life

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Battery Life, Cadence Sensor,

Marli2016 Author

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Replies: 1

24 January 2017, 19:19

Last week Thursday I bought a Tomtom Cadence sensor for my Tomtom Adventurer watch.
After installed I tested it and worked (that was Friday), however, on Saturday when it was time to really use the sensor it did not paired /sync with my watch so I was unable to use it. My question is, how long is supposed for the cadence sensor's battery to last?

Question #2. Can a Tomtom watch be paired to a Garming Cadence Sensor?
Thank you in advise for your replies
Marked as answer: tfarabaugh on 25 January 2017, 02:50

Marli2016 wrote:

Thanks for your reply on the Garmin question.

With regards the cycling speed/cadence sensor, it was well installed, and as I mentioned on Friday when I mounted and tested it worked, then on Saturday (the day after) the watch was unable to read/find the sensor, the little image of the sensor in the watch was blinking so I had to ride now knowing my cadence or accurate speed (even when the gps was working fine and recorded the exact beginning and end of the 60 miles ride) When I got home I was a disappointed I could not use it, so I decided to change the BRAND NEW battery the sensor came with for a replacement I happen to have there, and guess what... it worked, that is why I asked how long the battery will last on the sensor.
On the other hand, yesterday when using the sensor while doing indoor cycling it gave me cadence but NOT speed... Is that fine?



You should get cadence and speed if you have it set to indoor cycling (if you had it set for outdoor and had a GPS signal it will not give you speed as GPS overrides the sensor). If you were on indoor mode and only had cadence then it is likely the spoke sensor on the back wheel was misaligned. i go into the Sensors>Bike screen before each ride and make sure it is reading both (it shows it right on the screen).

It was probably an old battery that had been sitting around awhile. Glad that part worked out.

I hope this helped answer your question. If so, please mark it as a solution so others can look for it if they have the same question.

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    24 January 2017, 19:47

    Marli2016 wrote:

    Last week Thursday I bought a Tomtom Cadence sensor for my Tomtom Adventurer watch.
    After installed I tested it and worked (that was Friday), however, on Saturday when it was time to really use the sensor it did not paired /sync with my watch so I was unable to use it. My question is, how long is supposed for the cadence sensor's battery to last?

    Question #2. Can a Tomtom watch be paired to a Garming Cadence Sensor?
    Thank you in advise for your replies



    I assume you are referring to a cycling speed/cadence sensor. The battery is a cadence sensor will last for a year at least, it is a watch battery. Make sure it did not get dislodged between testing and using. It has to be lined up properly, with the spoke sensor passing over the back of the battery pod, across the line right above where it says "Close" and within 2mm (you will need to tilt the pod in towards the spokes, it has to be real close). The pedal sensor passes over the back of the smaller pod, where the wire goes in, again within 2mm. The clearances have to be really close to sense it. You also first need to turn the bikes sensor on in the watch by pressing down and going to Sensors>Bike>On (and you can see if it is synced here as well I always go here first).

    You cannot use a Garmin sensor as they only transit in ANT+ as far as I know, not in BT+, which is what the watch reads. Since Garmin owns ANT+ I do not think they have any BT+ sensors available yet.

    I hope this helped answer your question. If so, please mark it as a solution so others can look for it if they have the same question.
  • Marli2016 Author

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    Replies: 1

    24 January 2017, 20:08

    Thanks for your reply on the Garmin question.

    With regards the cycling speed/cadence sensor, it was well installed, and as I mentioned on Friday when I mounted and tested it worked, then on Saturday (the day after) the watch was unable to read/find the sensor, the little image of the sensor in the watch was blinking so I had to ride now knowing my cadence or accurate speed (even when the gps was working fine and recorded the exact beginning and end of the 60 miles ride) When I got home I was a disappointed I could not use it, so I decided to change the BRAND NEW battery the sensor came with for a replacement I happen to have there, and guess what... it worked, that is why I asked how long the battery will last on the sensor.
    On the other hand, yesterday when using the sensor while doing indoor cycling it gave me cadence but NOT speed... Is that fine?
  • tfarabaugh Modbreak Answer

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    25 January 2017, 02:50

    Marli2016 wrote:

    Thanks for your reply on the Garmin question.

    With regards the cycling speed/cadence sensor, it was well installed, and as I mentioned on Friday when I mounted and tested it worked, then on Saturday (the day after) the watch was unable to read/find the sensor, the little image of the sensor in the watch was blinking so I had to ride now knowing my cadence or accurate speed (even when the gps was working fine and recorded the exact beginning and end of the 60 miles ride) When I got home I was a disappointed I could not use it, so I decided to change the BRAND NEW battery the sensor came with for a replacement I happen to have there, and guess what... it worked, that is why I asked how long the battery will last on the sensor.
    On the other hand, yesterday when using the sensor while doing indoor cycling it gave me cadence but NOT speed... Is that fine?



    You should get cadence and speed if you have it set to indoor cycling (if you had it set for outdoor and had a GPS signal it will not give you speed as GPS overrides the sensor). If you were on indoor mode and only had cadence then it is likely the spoke sensor on the back wheel was misaligned. i go into the Sensors>Bike screen before each ride and make sure it is reading both (it shows it right on the screen).

    It was probably an old battery that had been sitting around awhile. Glad that part worked out.

    I hope this helped answer your question. If so, please mark it as a solution so others can look for it if they have the same question.

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