Notes on charging

Life span of the built-in lithium ion battery

  • Even if you do not intend to use the speaker for a long time, charge the built-in battery sufficiently once every 6 months to maintain its performance.

  • If the speaker is not used for a long time, it may take longer to charge the built-in battery.

  • The rechargeable built-in battery has a life span. As time passes and the number of times that the built-in battery is used increases, the capacity of the rechargeable built-in battery slowly decreases. When the amount of time that the built-in battery can be used seems significantly shorter, despite having been fully charged, contact your nearest Sony dealer.

  • When the amount of time that the built-in battery can be used seems significantly shorter, it could mean that the rechargeable built-in battery has expired.

  • The life span of the rechargeable built-in battery differs depending on the usage, environment, and storage method.

Caution

When the speaker detects an abnormality in the interior temperature or in the built-in rechargeable battery, the (power) indicator starts double flashing in orange.

If an abnormality is detected, disconnect the AC power cord (mains lead), wait for a while, and then restart the speaker (by pressing and holding the (power) button for about 10 seconds). If the problem persists, contact your nearest Sony dealer.

Note

  • Charging time varies depending on built-in battery usage conditions.

  • Charge the speaker in an ambient temperature between 5 °C and 35 °C (41 °F and 95 °F). Be aware that the room temperature may fall to 5 °C (41 °F) or lower depending on the season, for example, especially in wintertime.

  • The speaker becomes warm during charging. This is not a malfunction.

  • Avoid exposure to rapid temperature change, direct sunlight, mist, sand, dust, or mechanical shock. Also, never leave the speaker in a car parked in the sun.

  • As long as the speaker is connected to an AC outlet by the supplied AC power cord (mains lead), the speaker's built-in battery is capable of charging itself even while the speaker is turned on.

    However, it may take a long time before charging completes depending on the usage of the speaker. It is recommended that you turn off the speaker before battery charging.

  • In an extremely cold or hot environment, charging stops for safety. If charging takes a long time, it also makes charging of the speaker stop. To resolve these issues, disconnect the AC power cord (mains lead) from the speaker and connect it again within an operating temperature between 5 °C and 35 °C (41 °F and 95 °F).

  • At high temperature, the charging may stop or the volume may reduce to protect the battery.