Garmin Fenix 3 - Garmin: Replacing the Battery in your Heart Rate Monitor ( HRM) The CR2032 batteries in your HRM-Run, HRM-Swim or HRM-Tri straps will last approximately 18 months, depending on use.
![Jørn Thyssen on Twitter: "Changing battery in my @Garmin HRM-TRI using an itty-bitty screw driver and @Ikea knife as per @dcrainmakerblog https://t.co/x5ozPe4Ok8" / Twitter Jørn Thyssen on Twitter: "Changing battery in my @Garmin HRM-TRI using an itty-bitty screw driver and @Ikea knife as per @dcrainmakerblog https://t.co/x5ozPe4Ok8" / Twitter](https://pbs.twimg.com/media/Cc33JDyWoAU6tb_.jpg)
Jørn Thyssen on Twitter: "Changing battery in my @Garmin HRM-TRI using an itty-bitty screw driver and @Ikea knife as per @dcrainmakerblog https://t.co/x5ozPe4Ok8" / Twitter
![HRM-RUN cheststrap Red and garmin 945 - still have issue on connection! - Forerunner 945 - Running/Multisport - Garmin Forums HRM-RUN cheststrap Red and garmin 945 - still have issue on connection! - Forerunner 945 - Running/Multisport - Garmin Forums](https://forums.garmin.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/400/15679606036388373705972429603908.jpg)
HRM-RUN cheststrap Red and garmin 945 - still have issue on connection! - Forerunner 945 - Running/Multisport - Garmin Forums
![Amazon.com: Garmin HRM-PRO, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics, 010-12955-00 : Sports & Outdoors Amazon.com: Garmin HRM-PRO, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics, 010-12955-00 : Sports & Outdoors](https://m.media-amazon.com/images/I/81uUk9WJlaL.jpg)