Step 1: Charge the Battery

Caution: To prevent corrosion, thoroughly dry the charging contacts and the surrounding area before charging.

TIP: 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.

Contacts

4.Clip the charger securely over the face of the Forerunner.

A fully charged battery will last up to 20 hours, depending on usage.

Charging

clip

Forerunner 310XT Quick Start Manual

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