Charging
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Precautions for charging
• AC adapter 03 (option) plug shape is designed for 100 V AC
(domestic specification). To charge the battery abroad, a
corresponding plug adapter is required. Do not use an adapter
transformer for overseas trip. In addition, do not use the
wireless charger overseas.
• If you charge the mobile phone while using it, it may take more
time to fully charge the battery or charging may not be
completed. Continuous use of functions consuming large
current, such as data communication and call, may decrease
battery level even during charging, leading to battery drain.
• If you start charging when the battery is empty, the mobile
phone may not start up promptly after power-on operation. In
this case, start charging with the mobile phone off and turn it
on after a while.
• If you leave the mobile phone being charged for long time,
charging may repeated. The mobile phone consumes power
from the battery pack after completion of charging, so the
usable time may be shortened and alert of empty battery may
be displayed soon. In such a case, start charging the battery
again in correct manners. For recharging, disconnect the AC
adapter, DC adapter or wireless charger from the mobile
phone and then connect it again.
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Battery pack operating life
• Battery pack is a consumable item. Usable time per charge
gradually decreases with repeated charging.
• When its usable time per charge is decreased to about a half
of that from the time of purchase, the battery pack is near the
end of life. So you are recommended to replace with new one
soon. Depending on how the battery pack is used, it might
swell as its remaining life becomes short, but this is not a
problem.
• Continuously using the phone or watching 1Seg programs
while charging might shorten the operating life of the battery
pack.
53
Preliminary Check
