Use the charger provided with your phone to charge your speaker.
Don’t use other chargers with a USB-C connector, which can slow charge speed, and avoid incompatible USB-B (micro USB) chargers and uncertified adapters and cables.
To charge, do one of the following:
For fastest charge, connect your speaker to a power outlet with a USB-C cable.

Notes:
Press the battery check button to check the charge level.

The LEDs indicate the charge level.
| Lights on | Meaning |
|---|---|
| 1 | 0-24% charged |
| 2 | 25-49% charged |
| 3 | 50-74% charged |
| 4 | 75-100% charged |