We travel camper and to recharge our phones we had the car charger, but for some time we take our laptop and there a hassle to reload, he had to take a night at the campsite, which do not always was arranging. We bought this converter, which is really convenient and also allows us to recharge the batteries of cameras, c is simply awesome .... What is unfortunate is c not be able to connect over coffee but if c is in the future it will not happen ....