Sony Walkman NW-MS77DR Operating Instructions Manual page 12

Step 2: Charging the battery (continued)
2
Attach your Network Walkman to the supplied USB cradle or the recording USB cradle.
Note
Be sure to attach your Network Walkman in the direction of the arrow as illustrated below.
NW-MS70D/MS90D
USB cradle
connector
CHARGE lamp
NW-MS77DR
Recording
USB cradle
CHARGE lamp
The CHARGE lamp on the USB cradle or
the recording USB cradle lights up and
charging starts. It takes approximately 90
minutes*. When charging is complete, the
CHARGE lamp goes out.
We recommend you to charge the battery for
30 minutes or more continuously. Your
Network Walkman requires 15 minutes to
check the battery condition to protect it
before a quick recharge starts.
* The figure represents the charging time for an
empty battery charged in an ambient temperature
of between 5˚C to 35˚C (67˚F to 95˚F). The
charging time will be shortened depending on the
battery power remaining. If the battery is charged
in a low-temperature environment, the charging
time will be longer.
Notes
• Charge the battery in an ambient temperature of
between 5˚C to 35˚C (67˚F to 95˚F).
• It cannot playback during charge.
12
USB Cradle
USB cradle
connector
Access lamp
Battery duration (for continuous use)
ATRAC3 format: Approximately 44 hours
ATRAC3plus format: Approximately 36 hours
On the remaining battery indication
The battery icon in the display (page 14) changes as
shown below.
low battery battery
power is not
enough to
play music
Access lamp
charge
the battery