Note: This article refers to the BOOMSTER (2020), sold from 2017 to 2021. This model has a down-fire subwoofer.
When not using the device for a longer period of time, switch the battery switch on the back to the "Off" position by pressing it in. This will completely disconnect the battery from the unit and prevent deep discharge.
When the battery switch is off, the battery will charge when the unit is connected to AC power.
If you want to operate the BOOMSTER (2020) only in main operation, please remove the battery.