Before you first use the product, please fully charge the battery. Your unit was purposely shipped with a reduced battery charge to ensure safe transit.
For optimal charging, power off the speaker while charging. Use the included USB-A to USB-C® cable to connect the unit to either a 9V, 2.2A USB-C adapter for up to 2 hours or to a 5V, 1A adapter for up to 8 hours connected to a power outlet. This helps ensure the longest life for your battery