WALKMAN User Guide
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Top page > Getting Started > Power/Charging > Charging the battery

## Charging the battery

About the [Battery Care] mode
About the battery indicator
The player’s battery is recharged while the player is connected to a running computer.
When you connect the player to your computer, use the USB cable (supplied).
When the remaining battery indication in the upper right corner of the display shows , charging is completed. (Charging time is approx. 3 hours.)
When you use the player for the first time, or if you have not used the player for a long time, recharge it fully (to in the remaining battery indication of the display).
Note

- After fully charging, the player will automatically enter standby mode.

### About the [Battery Care] mode

In the [Battery Care] mode, the player stops recharging a short time before the battery is fully charged. When extended use over many hours is not required, you can set [Battery Care] to [On] to increase the available number of cycles of charge and discharge, which can significantly extend battery lifespan.
For how to set the [Battery Care] mode, see [Details].
Note

- In the [Battery Care] mode, the first bar of the battery indicator will disappear somewhat quicker than normal. This is a result of stopping recharging the battery before becoming fully charged (in order to extend the battery lifespan) and is not a malfunction.

### About the battery indicator

The battery indicator in the information area shows the remaining battery charge.
As the battery power gets lower, the bars of the icon disappear. If [LOW BATTERY. Please Charge.] appears, you cannot use the player. In this case, charge the battery by connecting to your computer. See [Details] on battery duration.
Hint

- The screen dims while charging.

Note

- If you charge the player when it has not been used for a long period, your computer may not recognize the player, or nothing may appear on the display. Charge the player for about 30 seconds, after which it should start operating normally again.

- Charge the battery in an ambient temperature of between 5 ºC to 35 ºC (41 ºF to 95 ºF). If you try to charge the battery in an ambient temperature outside this range, the icon may appear, and charging cannot be performed.

- 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 the player.

- [Do not disconnect.] appears in the display while the computer accesses the player. During this time, do not disconnect the USB cable (supplied); otherwise, data being transferred (or data already in the player) may be damaged.

- The control buttons on the player become inoperative while it is connected to a computer.

- To prevent battery deterioration, charge the battery at least once every half a year or every year.

- Some USB devices connected to the computer may interfere with proper operation of the player.

- We do not guarantee battery recharging using a personally assembled/modified computer.

- If the computer enters a power saving mode, such as the Sleep or Hibernation mode, while the player is connected via the USB cable, the player’s battery will not be charged. Instead, the player continues to draw power from the battery, discharging it.

- Do not leave the player connected for extended periods to a laptop computer that is not connected to AC power, since the player may discharge the computer’s battery.

- While the player is connected to a computer, do not turn on, restart, wake up from sleep mode, or shut down the computer. These operations may cause the player to malfunction. Disconnect the player from the computer before performing these operations.

- Heat may build up in the player while charging. This is not a malfunction.

- After connecting to a computer with the USB cable, the resume information of the last played song, video, photo, etc., is cleared. Reselect the desired content from the list screen.

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