WALKMAN User Guide
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## About battery life

Turn off the player manually
Longer battery life settings
Adjust data format and bit rate
By adjusting the settings or managing the power supply properly, it is possible to save battery power for longer usage time between charges.
The following hints will yield a longer battery life.

### Turn off the player manually

If you press and hold the OPTION/PWR OFF button, the player enters standby mode and the screen turns off to save battery power. Furthermore, if standby mode continues for more than about 4 hours, the player turns completely off automatically.

### Longer battery life settings

The following settings are effective for extending the battery life of the player.

- Reduce the [Brightness] setting value.

- Set [Type] of [Screensaver] to [Blank].

- Set [Equalizer], [Clear Stereo] and [Dynamic Normalizer] to [None] or [Off].

See [Details] for details on the effect of setting changes, default settings, and battery life measurement conditions.

### Adjust data format and bit rate

Playing time will vary, as battery charge can be affected by the format and bit rate of songs, videos or photos that are played.
For details on charging time and usage time, see [Details].
Related Topics
Charging time
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