Nokia 3120 classic User Manual page 82

B a t t e r y a n d c h a r g e r i n f o r m a t i o n
shorter than normal, replace the battery. Use only Nokia
approved batteries, and recharge your battery only with
Nokia approved chargers designated for this device. Use of
an unapproved battery or charger may present a risk of fire,
explosion, leakage, or other hazard.
If a battery is being used for the first time or if the battery
has not been used for a prolonged period, it may be
necessary to connect the charger, then disconnect and
reconnect it to begin charging the battery. If the battery is
completely discharged, it may take several minutes before
the charging indicator appears on the display or before any
calls can be made.
Always switch the device off and disconnect the charger
before removing the battery.
Unplug the charger from the electrical plug and the device
when not in use. Do not leave a fully charged battery
connected to a charger, since overcharging may shorten its
lifetime. If left unused, a fully charged battery will lose its
charge over time.
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