Sony SRS-HG10 Help Manual page 13

Hint
Even when listening to music from the speaker, you can charge the speaker if it is connected to the AC outlet. However, it is
recommended to turn off the speaker for charging because the charging time may become longer.
The voice guidance for the remaining battery capacity can be turned on or off by using the dedicated app "Sony | Music Center."
Note
When you switch the power source between an AC outlet and battery by connecting/disconnecting the USB AC adaptor, sound
output will stop for a short while. This is not a malfunction.
If you use the speaker at a high volume, the battery power may reduce even when connected to an AC outlet. When using the
speaker while charging the battery, turn the volume to low. Otherwise, turn off the speaker and charge it for at least 1 hour.
If you use the speaker at a high volume for a long time, the battery power and the volume may reduce even when connected to
an AC outlet. This is not a malfunction. In this case, turn off the speaker and charge it for at least 1 hour.
When the battery life is low (CHARGE indicator flashes), the maximum output level of the speaker becomes low.
In a very high or low temperature, charging the battery will be stopped for its safety. If the charging continues for a long time, the
charging may be stopped. Charge the battery in the usable temperature range (5 °C to 35 °C).
If you do not intend to use the speaker for a long time, charge the battery to its full capacity once every 6 months to maintain its
performance.
4-735-503-11(1) Copyright 2018 Sony Corporation
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