Yes, it takes 3 hours to charge a camera battery, but it comes with car and European adapters. The US plug swivels out from the back. The unit is nice and compact. The green "ready" light even works on the one I got.
Bought this charger as a back-up for my Sony alpha camera. It works, however, you must turn the charger upside down or the battery will fall out. As yet have not used the car charger feature, but am sure it will work as indicated. Would recommend as a 2nd charger.
The European adapter is a bonus since the US plug is built into the case.