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Forerunner 110 Owner’s Manual 13
This product contains a lithium‑ion
battery. See the Important Safety and
Product Information guide in the
product box for product warnings and
other important information.
1 week You are training for 45
minutes per day with
GPS. The Forerunner is in
power save mode for the
remaining time.
Up to 3
weeks
You are using the
Forerunner in power save
mode the entire time.
Up to 8
hours
You are training with GPS
the entire time.
*The actual battery life of a fully
charged battery depends on how much
time you use GPS, the backlight,
and power save mode. Exposure to
extremely cold temperatures will also
reduce battery life.
After a period of inactivity, the
Forerunner prompts you to go into
power save mode. The Forerunner
displays the time and date, but does not
connect with your heart rate monitor
or use GPS. Press to exit power
save mode.