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Charging
The internal battery is not fully charged. Be sure to charge the battery
before use.
Cautions while charging
z The battery can also be charged with the handset turned on (While
charging, the battery icon appears with [ ] superimposed).
z Do not charge for a long time with the power left turned on.
z If the handset is left for a long time even after the charging is completed, the
battery level may decrease.
z When the battery is empty and the handset is being charged, the charging
lamp may not illuminate immediately. However, charging is in progress.
z If the battery empty alert is displayed and the power cannot be turned on,
charge the battery for a while.
z 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.
z 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.
z 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.
Charging with AC adapter
z The specified adapter (SH-AC04) supports from 100 to 240 V AC.
z When you start charging, the charging lamp illuminates. Even when the
battery is fully charged, the charging lamp does not turn off.(Refer to page
5)
z The shape of the plug for the specified AC adapter is for 100V AC (for
domestic use).
z Note that inserting or removing the equipment forcibly may cause damage
to the USB Type-C connection jack and the Type-C plug or result in a
malfunction.
Charging with USB Type-C cable
z You can charge the handset by connecting the handset to a PC with the
specified SH-AC04 USB Type-C cable.