B A T T E R I E S
POLAR TRANSMITTER
The estimated average battery life of the Polar Transmitter is 2500 hours of use. Contact your distributor/ dealer for a transmitter replacement. 
Customer Care Charter for detailed instructions.
Polar recycles used transmitters.
POLAR WRIST RECEIVER
The estimated average battery life of the Polar wrist receiver is 1 year in normal use (2h/day, 7 days a week). Note also that excessive use of the backlight and the alarm signals will use the battery more rapidly.
Do not open the Polar wrist receiver yourself. To ensure the water resistance properties and the use of qualified components, the wrist receiver battery should be replaced only by an authorized Polar Service Center. At the same time a full periodic check of the Polar Heart Rate Monitor will be done. 
Customer Care Charter for detailed instructions.
S E R V I C E
Should your Polar Heart Rate Monitor need service, see Customer Care Charter to contact an authorized Polar Service Center.
Water resistance cannot be guaranteed after unauthorized service.
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