Directions for Replacing a Garmin Heart Rate Strap Battery

All you need is a CR2032 Lithium Coin Cell 3-volt battery

The Garmin heart rate monitor strap is worn around the chest and transmits your heart rate to your GPS watch and other compatible devices. The batteries last about three years or less if used regularly, so you should how to install a Garmin heart rate strap replacement battery.

How to Change the Battery in a Garmin Heart Rate Strap

The replacement battery you need is a CR2032 Lithium Coin Cell 3-volt battery, which is commonly available in grocery and drug stores. Here's how to change the battery:

  1. Locate the battery module on the back of the heart rate strap transmitter unit, then remove the plastic ring around it with your fingers.

    The battery module on the back of the Garmin heart rate strap
    Garmin
  2. Remove the four screws on the back of the module.

    Unscrew the Garmin heart rate strap battery cover
    Garmin

    On older models that don't have screws, use a coin to turn the battery cover counterclockwise.

  3. Remove the cover, then tap on the back of the module to make the old battery fall out.

    The battery removed on a Garmin heart rate monitor
    Garmin 
  4. Wait a full 30 seconds to give the unit time to reset. Otherwise, it may not recognize the new battery.

  5. Place the new battery in the compartment with the positive (+) side facing up.

    Battery facing positive side up in the Garmin heart rate strap
    Garmin
  6. Replace the back cover, screws, and rubber ring around the battery module.

    Replace the rubber ring around the battery module.
    Garmin

Re-Pair Your Garmin Heart Rate Strap

You may need to pair the heart rate monitor strap with your fitness device again after replacing the battery. See your owner's manual for pairing instructions. After it is paired, your Garmin sports device will recognize the heart rate monitor each time you put it on.