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The Polar H7 heart rate sensor has a user changeable battery. To change the battery yourself, please follow
the instructions carefully as instructed in See "Changing Heart Rate Sensor Battery" on page 98
The batteries for the speed sensor Bluetooth Smart® , and cadence sensor Bluetooth Smart® cannot be
replaced. Polar has designed the sensors to be sealed in order to maximize mechanical longevity and
reliability. The sensors have long-life batteries inside. To purchase a new sensor contact your authorized
Polar Service Center or retailer.
For battery information of the Polar stride sensor Bluetooth Smart®, consult the user manual for the product in
question.
Keep the batteries away from children. If swallowed, contact a doctor immediately. Batteries should be
disposed of properly according to local regulations.
CHANGING HEART RATE SENSOR BATTERY
To change the battery of the heart rate sensor yourself, carefully follow the instructions below:
When changing the battery, make sure the sealing ring is not damaged, in which case you should replace it
with a new one. You can purchase the sealing ring/battery kits at well-equipped Polar retailers and authorized
Polar Services. In the USA and Canada, the additional sealing rings are available at authorized Polar Service
Centers. In the USA the sealing ring/battery kits are also available at www.shoppolar.com.
When handling a new, fully charged battery, avoid clasp-like contact, i.e. simultaneously from both sides, with
metal or electrically conducting tools, like tweezers. This may short circuit the battery, causing it to discharge
more rapidly. Typically, short circuiting does not damage the battery, but it may decrease the capacity and the
lifetime of the battery.
1. Using a coin, open the battery
cover by turning it coun-
terclockwise to OPEN.
2. Insert the battery (CR 2025)
inside the cover with the positive
(+) side against the cover. Make
sure the sealing ring is in the
groove to ensure water res-
istance.
3. Press the cover back into the con-
nector.
4. Use the coin to turn the cover
clockwise to CLOSE.