A charging apparatus includes a device-specific bridging unit and a charging unit. The bridging unit is coupled electrically and removably to a charging port of an electronic device, and is operable so as to provide charging information that is specific to the electronic device. The charging unit is coupled electrically and removably to the bridging unit, and is operable so as to generate a charging signal that is based on the charging information received from the bridging unit and that is to be supplied to the electronic device through the bridging unit.