Samsung SGH-T319NBBTMB - Manual (Page 168)

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Sect
ion 12
• 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.
• Follow battery usage, storage and charging guidelines found in
the user’s guide.
• 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
overcharging may shorten its life.
• Do not use incompatible cell phone batteries and chargers.
Some Web sites and second-hand dealers, not associated with
reputable manufacturers and carriers, might be selling
incompatible or even counterfeit batteries and chargers.
Consumers should purchase manufacturer or carrier
recommended products and accessories. If unsure about
whether a replacement battery or charger is compatible,
contact the manufacturer of the battery or charger.
• 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).