Sportline DUO 1010 - Manual (Page 26)

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REPLACING THE WATCH BATTERY
The Sportline Duo 1010 Heart Rate Watch uses a single CR2032 lithium battery.
Battery replacement will be required from time to time, and should occur when:
1. The display fades in part or completely
2. The heart rate function will not activate
3. Backlight System does not operate
4. The battery icon is visible
To replace the battery of your Sportline Duo 1010 Heart Rate Watch, we recommend you take it to
a watch repair service center or certified jeweler. This will ensure that the water resistance will be
retained after battery replacement.
CUSTOMER SUPPORT
If you have questions, comments or need assistance with your Sportline Duo 1010 Heart Rate Watch,
you may contact Customer Support by calling 1-800-338-6337.