Operation Manual

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occur. The inobservance of these indications may lead to deteriorations or
the mismatch of your GPS-watch.
2.6 Environmental temperature
The GPS-watch can be operated durably at an environmental temperature
from 0 °C up to 50 °C, and stored at an environmental temperature of -10 °C
up to 60 °C. Avoid high temperatures (e.g. in stopped vehicles or under direct
sun influence) and permanent environmental humidity.
Indication:
Display problems at temperatures of -10° C up to 0° C will not be attributed
to the GPS-watch, but on the impairment of accumulators due to coldness.
The electro-chemical processes of the batteries and accumulators are
strongly influenced by the environmental temperature. The lower the
temperature, the more powerfully the processes are influenced during
discharge. That is why you should note that at temperatures below freezing
point, the battery, respectively the accumulators may "freeze", a fact that
will lead to the damage of the economic life of the battery, respectively of
the accumulators.
2.7 Functioning of the battery
Your GPS-watch operates on the basis of a lithium-polymer accumulator,
which can not be changed. The chest strap operates with a lithium battery 3V
CR2032.
Further you will find some indications regarding the manipulation of
accumulators:
 The accumulator of the GPS watch can not be changed and must not be
taken out.