User Manual

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power; talk and standby times are greatly affected by the signal
strength on the cellular network and the parameters set by the network
operator.
Battery charging times depend on the remaining battery charge and
the type of battery and charger used. The battery can be charged and
discharged hundreds of times, but it will gradually wear out. When the
operation time (talk time and standby time) is noticeably shorter than
normal, it is time to buy a new battery.
If left unused, a fully charged battery will discharge itself over time.
Use only approved batteries; and recharge your battery only with
approved chargers. When a charger is not in use, disconnect it from
the power source. Do not leave the battery connected to a charger for
more than a week, since overcharging may shorten its life.
Extreme temperatures will affect the charging capacity of your
battery: it may require cooling or warming first. Do not leave the
battery in hot or cold places, such as in a car in summer or winter
conditions, as you will reduce the capacity and lifetime of the battery.
Always try to keep the battery at room temperature. A phone with a
hot or cold battery may temporarily not work, even when the battery is
fully charged. Li-ion batteries are particularly affected by
temperatures below 0 °C.
Do not short-circuit the battery. Accidental short-circuiting can occur
when a metallic object (coin, clip or pen) causes a direct connection
between the + and - terminals of the battery (metal strips on the back
of the battery), for example when you carry a spare battery in a pocket