Battery Operating Time - Polar Electro M450 User Manual

1. Lift the rubber cover off the USB port. Plug the micro USB connector into the USB port in the
M450, and plug the other end of the cable into your PC.
2. Charging appears on the display.
3. When M450 is fully charged, Charging completed is displayed.
Don't leave the battery fully discharged for a long period of time or keep it fully charged all the time,
because it might affect the battery life time. Keep the USB port cover closed when not in use.
Do not charge the battery when the M450 is wet.
Do not charge the battery in temperatures under 0 °C / 32°F or over +50 °C / 122 °F. Charging your
M450 in an environment where temperature is not within this temperature range may permanently
damage the battery capacity - especially if the temperature is higher.

BATTERY OPERATING TIME

The battery operating time is up to 16 hours with GPS and heart rate sensor. The operating time
depends on many factors, such as the temperature of the environment in which you use your M450, the
features you select and use (e.g. the use of the front light reduces the operating time), and battery aging.
The operating time is significantly reduced in temperatures well below freezing.
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