The trouble is it s the t31 model strap that is sealed up molded in plastic.
T31 battery change.
With a new cr2032 battery and an eyeglasses screwdriver you should be able to r.
So i went down to the cvs.
Find nearest polar retailer from polar service finder.
The trouble was dead battery in the watch.
I ended up buying a two pack of 2032 batteries and it s a good thing i did.
As a result it s easy to monitor your heart rate during training runs.
This version of the t31 coded meaning it prevents crosstalk from other electronic devices to ensure complete accuracy polar also sells a non coded t31.
It s also built to last with a design that holds up to 2 500 hours of training usage.
Measure just under the breasts chest area.
The average battery lifetime of polar t31 and t31c transmitter is 2500 hours of use.
After changing out the battery in the watch the chest strap transmitter was also dead.
It s only 40 or so to replace but i was annoyed that polar had made these non user servicable in terms of battery replacement.
The battery in my t61 coded transmitter was fading.
How to replace a polar t31 chest transmitter battery.
The average battery lifetime of polar t31 and t31c transmitter is 2500 hours of use.
Rather than send it back to polar and pay for a new one i decided to replace it myself.
When the battery dies you will need to replace the whole heart rate sensor structure of the transmitter is sealed.
To transmit your heart rate to your wrist unit.
Change battery to your h1 h2 h3 h6 or h10 heart rate sensor yourself.
At the heart of your training is the coded t31 transmitter.
With good care your t31 t31c transmitter will last longer.
Its purpose is simple.
Sensor pairing is needed after update battery replacement if you use h10 with polar a360 m400 a300 m450 v650 m200 m600 or 3rd party app device.