Huawei HWV33 Basic Manual page 46

■ Internal■battery ■
Li-ion00
● Using the product in very hot or cold
environments, for example, when left in an
automobile with the windows closed in summer,
will cause the internal battery capacity to drop
and shorten the available battery usage time.
This also shortens the internal battery's service
life. Try to use the internal battery as far as
possible at room temperature.
● After the internal battery is charged, battery
power decreases bit by bit even if the product is
not used. The internal battery may be discharged
if the product is not used for a long time. We
recommend to charge the product before use.
● Internal battery is a consumable item. If the
performance of an internal battery does not
recover (e.g. the usable time after each charge
has become extremely short), the internal battery
is at the end of service life, so stop use. Since
the battery is built-in, au Shop will keep the
product and charges will be incurred for repair.
You may not use the product for a certain period.
Please be forewarned. Note that the length
of service life varies depending on the usage
condition, etc.
● Internal battery sometimes swells up as they
approach the end of its service life. This is due to
the properties of lithium-ion batteries, and is not
a problem in terms of safety.
(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. Also charge the battery
before using the product if you have
not used the product for a long time.
Notes on Usage
45