E3 - User guide - Battery levels and management

E3 has three built-in batteries; one inside the charging case and one in each earbud. The battery inside the case is used to charge the earbuds, while the included Type-C USB-cable is used to charge the case.

Before using your E3 for the first time

⚠️  Sudio E3 is delivered with a protective film covering the charging connectors between the earbuds and charging case. The film needs to be removed in order for the earbuds to power on.

Charging and play times

The earbuds can be used for approximately 6 hours on one charge (4.5 hours while using ANC), with up to 30 hours in total before the case needs to be recharged.

Each battery takes approximately 90 minutes to fully charge. 

Charging methods

The E3 case can be charged with a Type-C USB-cable, wireless charging is also supported. 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

The charging case’s indicating light is on the front of the case. The earbuds do not have an indicating light.

The LED on the case lights up when the earbuds connect and disconnect to the case and when there is less than 25% battery remaining.

When inserting the charging cable to the case, the current battery level is displayed for 5 seconds followed by a blinking light, indicating that the case is currently charging. 

In some cases, you can also read the battery level on your phone, such as iPhone or Android devices. The level shown is that of the E3 earbuds, not the charging case.

Charging case (no cable inserted)

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

Charging case (with cable inserted and charging)

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