Notes on charging

Life span of the built-in lithium ion battery

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

  • 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, consult Sony support contact or 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 is approaching the expiration date.

  • 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 on the speaker starts double flashing in orange.

When an abnormality is detected, turn off the speaker, disconnect the AC power cord (mains lead), and wait for a while. Then, press and hold the power button on the speaker for about 10 seconds. This restarts the speaker. If the problem persists, consult Sony support contact or your nearest Sony dealer.

Note

  • The battery 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, the room temperature falls especially in wintertime.

  • The speaker becomes warm to touch during battery 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 can charge the built-in battery. Battery charging is also possible 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.

  • For safety reasons, the speaker automatically stops charging in the following cases.

    • When the speaker is charged in an extremely hot or cold environment

    • When charging takes too long

    To resolve this issue, disconnect the AC power cord (mains lead) and connect it once again in the operating temperature range of 5 °C to 35 °C (41 °F to 95 °F).

  • If the built-in battery is under a high load during battery charging, charging stops for safety. In such a case, turn down the volume or stop the playback.

  • If you play music while the speaker is in the following circumstances, the volume may be automatically adjusted for safety reasons.

    • The speaker is charging the built-in battery.

    • The speaker is placed in a location with high ambient temperatures.

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