Battery Operating Time; Low Battery Notifications; Changing Heart Rate Sensor Battery - Polar Electro A300 User Manual

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Charging

appears on the display.

3. When A300 is fully charged,

Don't leave the battery fully discharged for a long period of time or keep it fully charged all the time,

because it may affect the battery life time.

BATTERY OPERATING TIME

The battery operating time is up to 26 days with 24/7 activity tracking and 1h/day training. The operating time

depends on many factors, such as the temperature of the environment in which you use your A300, the fea-

tures you use, and battery aging. The operating time is significantly reduced in temperatures well below freez-

ing. Wearing the A300 under your overcoat helps to keep it warmer and to increase the operating time.

When the display is blank, the battery is empty and A300 has gone to sleep mode. Charge your A300. If the

battery is totally drained, it may take a while for the charging animation to appear on the display.

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.

Battery full. Unplug.

Battery low

The battery charge is low. It is too low for recording a training session. It is recom-

mended to charge A300.

Battery low. Charge.

The charge has dropped to a critical level. Charge your A300 as soon as possible.

The charge is too low for recording a training session. A new training session can-

not be started before charging A300.

is displayed.

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