Battery life is short.

The operating temperature is below 5°C.

• Battery life becomes shorter as a result of battery characteristics. This is not a malfunction.

Battery charging time is not sufficient.

• Charge the battery until the entire battery icon becomes green.

You are using the Bluetooth function.

• More battery charge is consumed because the Bluetooth function transfers data wirelessly. The battery life will be longer if you turn off the connection whenever you are not using it. [Details]

You are using the Wi-Fi function.

• More battery charge is consumed because the Wi-Fi function transfers data wirelessly. The battery life will be longer if you turn off the connection whenever you are not using it. [Details]

You are using the GPS function.

• More battery charge is consumed because the GPS function transfers data wirelessly. The battery life will be longer if you turn off the connection whenever you are not using it.

Display is too bright.

• The battery life will be longer by adjusting the brightness of the screen.

You have not used your “WALKMAN” for more than a year.

• Depending on the conditions under which your “WALKMAN” is used, the battery may have been deteriorated. Consult your nearest Sony dealer.

Usable battery life is half that when new, even after sufficiently charging the battery.

• Your batter may be deteriorated. Consult your nearest Sony dealer.