We recommend charging the CurrentBody LED mask for 6 hours even if it looks charged. When charging the battery controller, please ensure it is not connected to the mask and ONLY connected to the mains wall socket with a USB charging wire.
Once the controller is charged please detach it from the wall socket and connect the controller to the LED mask. Please hold the power button for several seconds before releasing it, which should turn the mask on. Press once to switch the LED mask off. Always helps to ensure the USB cable is firmly pushed in.