Samsung Serene User Manual page 80

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• Never use any charger or
battery that is damaged in
any way.
• Use the battery only for its
intended purpose.
• If you use the phone near
the network's base station,
it uses less power; talk and
standby time are greatly
affected by the signal
strength on the cellular
network and the parameters
set by the network operator.
• Battery charging time
depends 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 Samsung-
approved batteries and
recharge your battery only
with Samsung-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
>> Health and safety information
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
(32 °F).
• 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
battery), for example when
you carry a spare battery in
a pocket or bag. Short-
circuiting the terminals may
damage the battery or the
object causing the short-
circuiting.
• Dispose of used batteries in
accordance with local