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How to Replace a Garmin Sports GPS Device's Heart Rate Strap Battery


How to replace a Garmin sports GPS heart rate monitor strap battery.

How to replace a Garmin sports GPS heart rate monitor strap battery.


Garmin sports GPS devices, such as the Edge cyclecomputers, and Forerunner GPS watches for runners and triathletes, all accept input from a Garmin heart rate monitor strap. These straps work well, but their batteries last about three years or less if used regularly. After you remove the old/dead battery per instruction steps below, be sure to wait a full 60 seconds before inserting the new battery. This gives the unit time to reset. Otherwise, it may not recognize the new battery and won't give a reading to your device.

Difficulty: Easy
Time Required: 5 minutes

Here's How:

  1. Locate the battery compartment on the back of the heart rate strap transmitter unit (see photo).
  2. Use a coin (a quarter works best) to turn the battery cover counterclockwise (direction marked "open" on the cover).
  3. Remove the old battery.
  4. Wait a full 60 seconds to give the unit time to reset.
  5. Place the new battery in the compartment with the positive (+) side facing up.
  6. Make sure the rubber O-ring gasket is not damaged and is seated correctly.
  7. Align the threads, and use the quarter to twist the cover clockwise firmly, to close.

What You Need

  • Replacement battery (CR2032: 3 volt).
  • Coin for opening battery compartment (a quarter works best).
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