HRM-Pro Plus Showing Low Battery Warning During Activity – Battery Status "Okay" in App
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Hi everyone,
I'm using the Garmin HRM-Pro Plus with the latest firmware v8.90. Recently, I've received low battery warnings twice during activities, even though:
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The Garmin Connect app, web dashboard, and watch all show the battery status as "Okay".
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The device syncs successfully and records metrics without dropouts (so far).
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Firmware is up to date.
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Battery has not yet completed a full year of use (used approx. 1 hour/day).
I understand that battery voltage may dip under load, but this seems inconsistent — could this be a firmware bug or sensitivity issue in v8.90?
Has anyone else experienced this? Should I proactively replace the battery, or wait until the warning becomes persistent?
Would appreciate guidance or if Garmin support could look into this.
Thanks!
