Polar F4 manual Changing Wrist Unit Batteries, Changing Transmitter Batteries

E N G L I S H

Changing Wrist Unit Batteries

Do not open the wrist unit yourself. To ensure water resistance properties and the use of qualified components, the wrist unit battery should be replaced by an authorized Polar Service Center only. A full periodic check of the heart rate monitor will be done when changing batteries.

The low battery symbol will appear when 10-15% of the battery capacity is left. The backlight and sounds are automatically deactivated. Excessive use of the backlight drains the battery more rapidly. In cold conditions, the low battery indicator may appear, and disappear again when you return to a warmer environment.

Changing Transmitter Batteries

If you suspect that the transmitter battery has run out, contact your authorized Polar Service Center for a replacement transmitter. Polar recycles used transmitters.

18 Customer Service Information