Sony NWZ-W274S User Manual
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35 ºC (95 ºF). If you try to charge the battery in an ambient temperature
outside this range, it will not properly charge. In such a case, the OPR
lamp blinks red.
The number of times the battery can be recharged before it is used up is
approximately 500 times. This number may vary depending on the
conditions under which you use your Walkman.
The control buttons on your Walkman become inoperatable while
connected to a computer.
To prevent battery deterioration, charge the battery at an interval of at least
every six months to a year.
The Walkman will not charge if the computer enters a power saving mode
such as Sleep or Hibernate, and will discharge in this case.
Do not leave your Walkman connected for extended periods of time to a
laptop computer that is not connected to AC power. Leaving the Walkman
connected may discharge the computer’s battery.
Disconnect your Walkman from the computer before you turn on, restart,
wake up from the sleep mode, or shut down the computer.
Heat may build up in your Walkman while charging. This is not a
malfunction.
When you use your Walkman for the first time, or if you have not used the
Walkman for a long time, recharge it fully (until the OPR lamp turns off).
When you use your Walkman for the first time, or if you have not used the
Walkman for a long time, it may take a few minutes to be recognized by
the computer, even if charging has already started (the OPR lamp lights up
in red). Check that the computer recognizes the Walkman after you have
connected it to the computer for about 5 minutes.
Copyright 2013 Sony Corporation
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