The E-Trailer is an electric powered system that drives a caravan. This solves a lot of problems conventional caravans encounter. With the build-in E-trailer you can pull a caravan with every car, even small, light-weight and energy efficient cars. This way driving a caravan becomes safer, cheaper and easier. The E-trailer consists of two wheels with build-in electric motors, lightweight batteries with lithium-ion batteries and intelligent control system.