Sony NW-E393 How To Use Manual page 22

Help Guide
[12] How to Use
Extending the battery life
You can reduce battery consumption by using your Walkman as follows.
For a comparison of battery life based on set effects, default settings and
functions, see "Battery life."
Turn off the power manually.
Set a shorter time for [Screen Off Timer].
Adjust the screen brightness.
Set all sound quality settings to off.
[13] How to Use
Notes on charging the battery
The charging time differs depending on the battery usage conditions.
If the battery life is reduced to about half of its normal life even if
sufficiently charged, it has probably worn out. Please contact your
nearest Sony dealer.
If you charge your Walkman when it has not been used for a long
period of time, your computer may not recognize it, or the Walkman
may not respond. Charge the Walkman for about 10 minutes, after
which it should start operating normally again.
When the ambient temperature exceeds the recommended range,
is displayed on the screen and charging is forcibly stopped. Charge the
battery in an ambient temperature between 5 °C to 35 °C (41 ºF to 95
ºF).
The number of times the battery can be recharged from complete
discharge is approximately 500 times. This number may vary
depending on the conditions under which you use your Walkman.
To prevent battery deterioration, charge the battery at least once every
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Getting Started Power/Charging
Getting Started Power/Charging
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22/02/16 16:12