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Battery and Charger Information
81
15. Battery and Charger
Information
■ Battery Information
You device is powered by a rechargeable battery. The battery intended
for use with this device is BL-4B 700 mAh Li-Ion. This device is
intended for use when supplied with power from the following
chargers: AC-6U. The battery can be charged and discharged
hundreds of times, but it will eventually wear out. When the talk
and standby times are noticeably shorter than normal, replace the
battery. Use only approved batteries, and recharge your battery only
with 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 turn 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.
Always try to keep the battery between 15°C and 25°C (59°F and
77°F). Extreme temperatures reduce the capacity and lifetime of the
battery. A device with a hot or cold battery may not work temporarily.
Battery performance is particularly limited in temperatures well
below freezing.