User's Manual

51
Getting Ready
Charging
Charging
When you purchase the product, the internal battery is
not fully charged. Be sure to charge the internal battery
before use.
•
If the performance of the battery does not recover
(e.g. the usable time after each charge has become
extremely short), the internal battery may be at the
end of service life. On the home screen, tap [APPS]
→ [Settings] → [Device info] → [Status] → [Battery
status] to check the charging performance of the
internal battery.
•
While charging, the charging/incoming/key indicator
illuminates in red, and the battery icon is displayed
with
superimposed. When charging is finished, the
charging/incoming/key indicator goes out.
memo
◎ Depending on the operation procedure and usage
environment, the temperature inside the product may get
high and the product may even get heated. In such case,
charging may stop for security reasons.
◎ Charging the internal battery while using the camera
function etc. may lengthen the charging time.
◎ If you perform various operations with a specified charger
(sold separately) connected to the product, charging/
discharging may take place repeatedly in a short time.
Frequently charging the internal battery shortens its service
life.
◎ If you charge the internal battery when the battery has run
out, the charging/incoming/key indicator may not illuminate
soon. However, charging is in progress.
◎ If the charging/incoming/key indicator flashes in red, force
the power off (▶P. 56) and turn the product on again. If the
indicator continues to flash, stop charging the internal
battery and contact an au shop or the Secure cell phone
support center.
◎ If you stop charging while the charging/incoming/key
indicator still illuminates during charging, the cell phone
may be left not fully charged even if is displayed on it. In
such case, the usage times shorten.
Charging with the Specified AC
Adapter (Sold Separately)/Specified
DC Adapter (Sold Separately)
The followings are the explanation of how to connect
the common AC adapter 04 (sold separately)/common
DC adapter 03 (sold separately) to charge. For details
on the specified AC adapter (sold separately)/specified
DC adapter (sold separately), refer to
“Introduction of Peripheral Devices” (▶P. 76).