The DC output mode of the Mobile 25,600 allows you to directly charge your device without the need for a charging brick. Make sure that your device supports one of the 4 preset voltages before use (12V/16V/19V/24V).
To start outputting power from the DC port, first double press the power button to enter the voltage selection mode. The LED indicator should now start blinking.
From here you can single press the power button, and you will see the LED indicator cycle through the 4 available voltage presets. When the LED indicator is on the desired voltage, you can single press the power button to start outputting the selected voltage. You can now plug the DC output cable between the Omnicharge and your device.