Is the outlet that you are trying to use putting out 220V? Here in america, we run a 120V system by default for residential buildings. We use 220/240V on some of our more power hungry appliances like ranges and clothes dryers. This requires two "hot" wires, both energized at 120V, to the outlet to make up the 220/240V. If there is any interruption or a short in one of the wires, we get intermittent 220/240V, or drops to 120V, meaning the device will not work at all, or sporadically.
Try numerous outlets to see if all of them do it. Then, you could probably rule out the electrical system. USB adapters need only 5V or 12V to charge devices, and everything that you mentioned in your post as working, were in the car, or a PC. These voltages would be stable, and as labeled.
That would be my first course of action would be to check the voltages in the house, at the wall outlets to verify the 220V.
Last edited by Jevangil; 08-08-2009 at 12:32 AM.
08-08-2009 12:27 AM