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4 Forerunner 405 Owner’s Manual
Getting Started
Step 2: Charge the
Battery
Your Forerunner ships with the
power off to conserve the battery.
Charge the Forerunner for at least
3 hours before using it. The length
of time a fully charged battery will
last depends upon usage. For more
battery information, see page 40.
To prevent corrosion,
thoroughly dry the charging
contacts and surrounding area
before charging.
The Forerunner will
not charge when outside
the temperature range of
32°F–122°F (0°C–50°C).
1. Plug the USB connector on the
charging clip cable into the AC
adapter.
2. Plug the AC adapter into a
standard wall outlet.
3. Align the charging clip posts with
the contacts on the back of the
Forerunner.
N9
ÌÏ02
Forerunner
405
12345678
FCC ID:IPH-01253
IC: 1792A-01253
Designed in the USA
Made in Taiwan
Contacts
4. Clip the charger securely over the
face of the Forerunner.