F2 - User guide - Battery levels and management

F2 has one built-in battery inside the speaker.

Charging and play times

The speaker can be used for approximately 15 hours on one charge.

The battery takes approximately 4 hours to fully charge. F2 does not support quick charge.

Charging methods

F2 can only be charged with a Type-C USB-cable. We recommend using the Sudio cable included in the package, however, other third-party Type-C USB-cables may be compatible too.

Battery level indicators (no cable inserted)


  • White: 26-100% battery remaining
  • Orange: 0-25% battery remaining

Battery level indicators (with cable inserted and charging)


  • White (fixed): 100% battery charged
  • Orange/White blinking: 0-99% battery charged
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