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36 FR70 Owner’s Manual
Appendix
Heart Rate Monitor Battery
The heart rate monitor contains a
user‑replaceable CR2032 battery.
The heart rate monitor battery should
last for three years.
Replacing the Heart Rate
Monitor Battery (Hard Strap)
1. Locate the circular battery cover
on the back of the heart rate
monitor.
2. Use a coin to twist the cover
counter-clockwise so the arrow
on the cover points to OPEN.
3. Remove the cover and battery.
Wait 30 seconds. Insert the new
battery with the positive side
facing up.
Do not damage or lose
the O‑ring gasket.
4. Use a coin to twist the cover
clockwise so the arrow on the
cover points to CLOSE.
After replacing the
battery, you may need to pair the
heart rate monitor with your FR70
again.
Replacing the Heart Rate
Monitor Battery (Soft Strap)
1. Use a small Phillips screwdriver
to remove the four screws on the
back of the module.
2. Remove the cover and battery.
3. Wait 30 seconds.
4. Insert the new battery with the
positive side facing up.