Precautions When Using Batteries - Samsung SGH D908 User Manual

Samsung cell phone user's guide
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Precautions when using batteries

Never use a 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, the type of battery, and the
charger used. The battery can be charged and
discharged hundreds of times, but it will gradually
wear out. When the operation 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. Disconnect the charger from
the power source when it is not in use. 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
because the capacity and lifetime of the battery
will be reduced. Try to keep the battery at room
temperature. A phone with a hot or cold battery
may not work temporarily, even when the battery
is fully charged. Li-ion batteries are particularly
affected by temperatures below 0°C (32°F).
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