About the Battery
You can check how much charge remains from the battery icon below the time display.
Battery icon
Hours
remaining*
GPS On
HR On
20 to 14 hours
14 to 8 hours
8 to 2 hours
2 to 0 hours
GPS On
HR Off
24 to 17 hours
17 to 10 hours
10 to 3 hours
3 to 0 hours
GPS Off
HR On
60 to 42 hours
42 to 24 hours
24 to 6 hours
6 to 0 hours
*
Standard hours during which you can use the Chronograph function while receiving a GPS signal.
Usage hours vary depending on the conditions (HR measuring On, frequency the light turns on, and so on).
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Important:
Nothing is displayed when the battery is running out. If the device is left for a long time with a low battery, the
performance of the rechargeable battery will deteriorate. Make sure you charge the device
at least once every six
months
even when it is not being used.
Note:
Even if the battery runs out, measurement data is stored in the main memory.
User Manual
Preparing and Basic Operations
28