Sony WALKMAN NW-ZX505 Help Manual page 124

Note
The values shown in this topic indicate the approximate battery life when content is played under all of the following conditions.
The player is playing continuously with the default settings.
The playback app is Sony original music player app.
Even if the player is turned off for an extended period, a small amount of battery power is still consumed.
Battery life may vary depending on volume setting, conditions of use and ambient temperature.
The battery is consumed considerably when the screen is on.
The battery life may become about 60% shorter when some of the sound adjustments are active.
When DSEE Ultimate™ is active, the battery life may become about 30% shorter than in the case of DSEE HX (Ver. 3.00 or
later).
The battery life may become about 20% shorter when the [High-Res streaming] function is active.
The music app other than Sony original music player app may drain the battery faster than the above values.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
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