We recommend fully charging Somnox 2 prior to the first usage. You cannot use Somnox 2 while charging. In this article, we will explain how to charge Somnox 2.

Assembling the charger

You can find the charger's elements within a small box that's in the Somnox 2 packaging. Inside this box, you will find an adapter, a USB-C cable, and three different plugs (for EU, UK, and the US). It is important that you use the right one for your country.

In order to charge Somnox 2, you will need to assemble the charger. If you need help assembling the charger, please follow the instructions below.

Charging Somnox 2

Important: It is not possible to use Somnox 2 while charging

In order to charge Somnox 2, please connect the USB-C charger with Somnox 2 and insert the plug into an AC outlet. Make sure that the USB-C charger is properly connected to Somnox 2.

Somnox 2 needs to be charged with a USB-C charger. We recommend using the charger that is included in the Somnox 2 packaging.

How long do you need to charge Somnox 2?

Somnox 2 is fully charged after approximately 5 to 6 hours. All three battery indicator lights will switch on once the battery is fully charged. Don't worry if the third battery indicator light is blinking. You can find more information about the battery indicator lights below.

How often do you need to charge Somnox 2?

The frequency of charging Somnox 2 depends on the settings you selected in the Somnox app. We recommend charging Somnox 2 once every two days or when just one battery indicator light is turned on to optimize battery life.

With a full battery, you can use Somnox 2 for around 4 to 5 sessions of two hours.

Why is my battery dead even though I didn't use Somnox 2?

You should charge Somnox 2 even when you do not use it for a few days. When Somnox 2 is turned off, it still uses a little bit of charge. This happens with all types of batteries.

Can I use another USB-C charger?

We recommend using the USB-C charger that's delivered with Somnox 2. Using another USB-C charger can affect charging time and battery life.

Check battery level

When your Somnox is charging and connected to an electrical socket via the USB-C charger, you can check the battery level. The battery indicator lights will light up and show the current battery level. You can find the battery indicator lights on the control panel (see image below).

  • When only one indicator light turns on and flashes, the battery is almost completely dead, and you will need to charge the battery before you can start using Somnox 2 again.

  • When only one indicator light is turned on, the battery is nearly dead, and it is time to charge Somnox 2.

  • When two or three battery indicator lights are turned on, you don't need to charge Somnox 2 yet.

The chart below explains the meaning of the battery indicator lights in a visual way.

You can also check the battery level in the Somnox app. The instructions and images below show you how to do this.

  1. Click on the arrow in the upper right corner of the home screen (see image below).

  2. Now you will see the status screen on which you can check the battery level.

  3. You can see the battery level below Battery (in the image below, it's 100%).


Specifications charger


100 - 240 V, 50/60 Hz


5 V, 2 A

Specifications battery

Battery type

6800 mAh Li-ion (3.6 V)


5 V


10 W

Charging time

It takes 4 hours to charge the battery to 80%

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