40
Before Using the Handset
Charging
The internal battery is not fully charged at the time of
purchase. Be sure to charge the battery before use.
Cautions while charging
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For details on the estimated charge time and battery life when
fully charged
☞
P. 161 “Main specifications”
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The battery can also be charged with the handset turned on
(While charging, the battery icon appears with [
]
superimposed).
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Do not charge for a long time with the power left turned on. If the
handset is left turned on after charging is complete, the internal
battery charge level decreases.
In this case, the charger or wireless charger (commercially
available) charges the battery again. However, depending on the
time when the handset is disconnected from the charger or
wireless charger, the battery charge level may be low or the
battery may only be usable for a short time.
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If the handset is left for a long time even after the charging is
completed, the battery level may decrease.
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When the battery is empty and the handset is being charged, the
charging lamp may not illuminate immediately. However, charging
is in progress.
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If the battery empty alert is displayed and the power cannot be
turned on, charge the battery for a while.
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While charging, the handset may not be turned on even when
the charging lamp is illuminated in red. Charge longer and try
turning the power on again.
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Frequently recharging the battery when its power is still
remaining enough may shorten the usable life of the internal
battery. It is recommended to use the battery to a certain level
(e.g. after the battery level decreases) before recharging.
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When the battery becomes warm, charging may automatically
stop even if the battery has not been fully charged. Charging
automatically resumes after the temperature lowers to an
appropriate temperature. However, with some wireless chargers,
charging may not automatically resume even if the temperature
lowers during the charging process. After the temperature of the
handset lowers, remove the handset from the wireless charger
and then start the process again.
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General
Weight and Dimensions
