Polar Watch Battery
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Polar uses WearLink Transmitter batteries on all their heart monitor watches. The estimated average lifespan of the Polar Watch Battery transmitter is two years (at least 2 hours/day, 7 days/week of usage). To be able to guarantee the maximum life span of the connector’s battery cover, only open it if you need to change the battery. The brand recommends changing the sealing ring of the battery cover every time the battery is changed. Sealing ring/battery kits can be bought from Polar service centers.
Erratic readings don’t necessarily mean your Polar Watch battery transmitter is damaged. Irregularities can sometimes be caused by proximity to a source of magnetic or electrical interference. For instance, some treadmills, exercise bikes, and stair climbers have electric motors or controls that can cause interference. Furthermore, if the monitor is near a TV screen, electric motor, computer, or a running automobile, any of these may also cause erratic readings. It will be very helpful to hold the watch unit close to the chest strap and read it while it is held close. This makes the signal from the chest transmitter stronger compared to any interference. The Polar models with coded transmitters, however, minimize these problems.
The Polar watch battery in the watch portion is replaceable and the estimated life span is approximately one and a half years used at two hours per day, seven days a week. To retain its water resistance capabilities, battery replacement should be done in Polar service centers so new gaskets can be installed and the watch is checked in a vacuum chamber.
Even though the receivers are water resistant, you should avoid pushing the buttons when under water since it can put an excessive amount of pressure against the button seals, which can possibly cause leakage. Like any other watch, you should avoid prolonged exposure to heat or direct sunlight as heat can weaken the seal of the crystal face that can also possibly result in leakage.
The Polar watch battery transmitter is irreplaceable, which means that once the battery is drained, you need to get a new transmitter. To prolong the life of your transmitter, you must take care of it. Keep it clean by washing it gently with water and soap. Excess sweat and salt buildup act as a conductor and causes unstable performance. If you use your heart monitor for swimming, avoid prolonged underwater usage as excess chlorine content and seawater may be very conductive and the electrodes of the transmitter may get short circuited, causing incorrect readings.
