A charging device for a motor vehicle having a device input interface and a device output interface, wherein the charging device comprises a plurality of charging modules to which an input voltage can be provided by a respective module input interface and the device input interface, wherein a respective voltage rectifier of the respective charging module is configured to convert the input voltage into an output voltage provided at a respective module output interface, wherein the module output interfaces are connected in parallel with the device output interface, wherein a charging module removed from the charging device can be used separately from the charging device as a charger in order to charge the energy storage device of the motor vehicle or a further motor vehicle from the power source or a further power source, wherein the respective charging module comprises a control device which is configured on the one hand, to detect at least one operating parameter of the respective charging module and/or to receive at least one item of communication information from a communication device on the motor vehicle side and, on the other hand, to control or regulate the output voltage at the module output interface and/or a charging current depending on the operating parameter and/or the communication information.