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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.
• 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.
• The internal battery gradually discharges
after charging, even if the product is not used.
Overdischarging may make it impossible to
recharge the battery after a long period of
inactivity, so regular recharging is recommended.
• Depending on the use condition, the internal
battery may be inflated as it comes close to
the end of its service life. This is because of or
caused by the properties of lithium-ion battery and
does not pose any safety risks.
• The internal battery is a consumable item. If the
performance of the internal battery does not
recover (for example, the usable time after each
charge has become extremely short, the internal
battery is swollen, etc.), stop using the battery as
it is at the end of its service life. As the battery is
builtin, please check the "
取扱説明書 詳細版
(Full
Instruction Manual)" (Japanese) or our website,
and contact your carrier to replace the battery.
Note that you will not be able to use the product
for a certain period of time. Please understand
this in advance. Battery life varies depending on
usage conditions and other factors.