Garmin Forerunner 405 Owner's Manual - Page 42

Heart Rate Monitor, Battery, How Do Heart Rate Zones, Affect Your Fitness Goals? - replacement battery

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Using Accessories How Do Heart Rate Zones Affect Your Fitness Goals? Knowing your heart rate zones can help you measure and improve your fitness by understanding and applying these principles: • Your heart rate is a good measure of exercise intensity. • Training in certain heart rate zones can help you improve cardiovascular capacity and strength. • Knowing your heart rate zones can prevent you from overtraining and decrease your risk of injury. Heart Rate Monitor Battery The heart rate monitor contains a user-replaceable CR2032 battery. Note: Contact your local waste disposal department to properly dispose of batteries. To replace the battery: 1. Locate the circular battery cover on the back of the heart rate monitor. 2. Use a coin to twist the cover counter-clockwise so the arrow on the cover points to OPEN. 3. Remove the cover and replace the battery with the positive side facing up. Note: Be careful not to damage or lose the O-ring gasket on the cover. 36 Forerunner 405 Owner's Manual

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Forerunner 405 Owner’s Manual
Using Accessories
How Do Heart Rate Zones
Affect Your Fitness Goals?
Knowing your heart rate zones can
help you measure and improve
your fitness by understanding and
applying these principles:
Your heart rate is a good measure
of exercise intensity.
Training in certain heart rate
zones can help you improve
cardiovascular capacity and
strength.
Knowing your heart rate
zones can prevent you from
overtraining and decrease your
risk of injury.
Heart Rate Monitor
Battery
The heart rate monitor contains a
user-replaceable CR2032 battery.
•
•
•
NOTE:
Contact your local
waste disposal department to
properly dispose of batteries.
To replace the battery:
1. Locate the circular battery cover
on the back of the heart rate
monitor.
2. Use a coin to twist the cover
counter-clockwise so the arrow on
the cover points to
OPEN
.
3. Remove the cover and replace
the battery with the positive side
facing up.
NOTE:
Be careful not to
damage or lose the O-ring
gasket on the cover.