Charging the speaker
The speaker can be operated by connecting it to an AC outlet via the USB AC adaptor (commercially available) or by using the built-in battery.
When using the speaker for the first time, be sure to charge the built-in battery for more than 1 hour before turning on the power.
You can operate the speaker with the built-in battery by charging the speaker before use.
- Connect the speaker to an AC outlet to charge it.
Connect the micro-USB cable (supplied) to the DC IN 5V jack on the speaker, and then connect the other end to a USB AC adaptor (commercially available). After that, plug the USB AC adaptor into an AC outlet.
The speaker supports a USB AC adaptor (commercially available) with an output current of 500 mA or more. However, using a USB AC adaptor with an output current of 1.5 A or more and a supplied micro-USB cable or micro-USB cable conforming to the USB standard is recommended. Charging from the other device is not guaranteed.
The CHARGE indicator lights up in orange while charging.
The estimated charging time differs depending on the power output capacity of the connected USB AC adaptor (commercially available). Depending on the type and specification of the USB AC adaptor and micro-USB cable, the charging time may take longer than the time stated below. The time stated below may vary depending on the ambient temperature or conditions of use.
The following time is stated as the reference time.
When connecting to a USB AC adaptor (commercially available) which has the ability to output in 1.5 A:
Charging will be completed in about 5 hours*, and the CHARGE indicator will turn off.
* Time that is required to charge the empty built-in battery to its full capacity when the speaker turns off.
When charging is completed, close the cap securely.
The cap plays a very important role in maintenance of the waterproof and dust proof performance.
Checking the charging completion
If the built-in battery is fully charged when you connect the speaker to an AC outlet, the CHARGE indicator lights up in orange then turns off after about 1 minute.
Checking the built-in battery level of the rechargeable built-in battery
After pressing the BATT (battery)/LIGHT button inside the cap on the rear side of the speaker, when the speaker is turned on, the voice guidance listed below is output from the speaker depending on the remaining built-in battery power.
70% or more: “Battery fully charged”
50% or more: “Battery about 70%”
20% or more: “Battery about 50%”
10% or more: “Battery about 20%”
Less than 10%: “Please charge”
Lithium-ion battery life (with playback via a BLUETOOTH connection)
About 24 hours
The volume level of the speaker is set to 21.
The lighting function is set to off.
The Sound Mode is set to STANDARD.
About 14 hours
The volume level of the speaker is set to 21.
The lighting function is set to on. (factory default settings)
The Sound Mode is set to EXTRA BASS. (factory default settings)
About 4 hours
The volume level of the speaker is set to maximum.
The lighting function is set to on.
The Sound Mode is set to EXTRA BASS.
If the built-in lithium-ion battery is running low, the maximum volume is reduced to about half to protect the circuit. This is a specification.
The usage life mentioned here also includes when playing back music at about half the volume.
The built-in battery life above is measured using our specified music source.
Actual performance time may vary from the listed time due to the volume, songs played, surrounding temperature, and usage conditions.
When the built-in battery is running low
When the voice guidance says “Please charge” and the CHARGE indicator and(power) indicator flash slowly, the built-in battery is running low and needs to be charged. In this state, the speaker cannot supply power to other devices.
You can also charge the speaker by connecting it to a booted computer via the micro-USB cable. However, operation with all computers is not guaranteed. Operation with a home-built computer is also not covered by the warranty.
A speaker that is in use can be charged if it is connected to an AC outlet via a USB AC adaptor (commercially available) or if connected to a booted computer. In this case, it may take longer to charge the built-in battery compared to when the speaker is turned off depending on the conditions of use. Therefore, it is recommended to turn off the speaker when charging.
When you use the speaker at a loud volume, the built-in battery may run low even if the speaker is connected to an AC outlet. If you want to use the speaker while charging, lower the volume of the speaker. Otherwise, turn off the speaker and charge the built-in battery sufficiently.
When you use the speaker at a loud volume for a long time, the built-in battery may run low even if the speaker is connected to an AC outlet. As a result, sound becomes low. This is not a malfunction. Turn off the speaker and charge the built-in battery sufficiently.
The maximum power output will be lower when the built-in battery is running low.
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 micro-USB cable, and then connect it again within an operating temperature between 5 °C and 35 °C (41 °F and 95 °F).
Do not charge in places where water may splash on the speaker.
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.