Most campers have a 12 volt battery. Campgrounds have a 110 volt electrical outlet, or 230 volts in Europe. Remember to bring adapters for your electrical devices if necessary.
Electronic devices, such as a smartphone, tablet or laptop can be charged via an adapter at the cigarette lighter or via the camper’s electrical system (if connected to the campground’s electrical system). The consumer battery in the vehicle is charged while driving, which ensures a power supply.