I had the adapter used for 4 months at a road trip across Australia and have thus always reliably charged my laptop + mobile phone + iPod. Really only works while driving or when the ignition is on. If only the ignition is on, it may be that normal USB connector and can not be used both as the power is not enough. During the trip, but already! From time to time the unit overheats, it flashes and you have to unplug time half an hour. But despite the sometimes extremely high temperatures in the car, the part has proven to be robust and efficient. Was a really good buy !!
