31
Notes on Usage
…
■ Internal…battery
(The…internal…battery…of…the…product…is…a…
lithium-ion…battery.)
The internal battery is not fully charged
at the time of purchase.
Charge the battery before using the
product.
If you have not used the product for a
long time, you should charge the battery.
• At extremely high or low temperatures, such as
if you leave the product in a closed car during
summer, the capacity of the internal battery
decreases and so will the amount of time it can be
used decreases. This also decreases the lifespan of
the battery. Use the product at room temperature
whenever possible.
• After charging the battery, it gradually discharges,
even if you do not use the product. If you do not use
the product for a long time, you should charge the
battery as the internal battery may have discharged.
• The internal battery is a consumable item. If the
performance of the internal battery does not recover
(e.g. the usable time after each charge has become
extremely short), stop using the battery as it is at
the end of its service life. As the battery is built-in,
you can have it replaced at an au shop/au Style for a
fee. Note that you will not be able to use the product
for a certain period of time. The battery lifespan
varies depending on how the product is used.
• Depending on the use condition, the internal battery
may be inflated as it comes close to the end of its
service life. This is due to the properties of lithium-
ion battery and does not pose any safety risks.
…
■ Charging…equipment
• Do not wrap the power cord of the specified
charging equipment (sold separately) around the
adapter. Also, do not forcibly bend the plug of
the charging equipment (sold separately) or the
connection between the connector and power cord.
Do not pull or place a heavy object on the charging
equipment (sold separately) code with unnecessary
force. Doing so may result in a malfunction.
• When unplugging the power plug of the specified
charging equipment (sold separately) from the
outlet, hold and pull the power plug. If you pull the
cord, the cord might be damaged.
