A charging apparatus includes a housing, an AC input connector mounted on the housing for connection with an AC power supply source, a DC input connector mounted on the housing for connection with a DC power supply source, a voltage and current transforming device mounted inside said housing and connected to the AC and DC input connector, at least one current output wire connected electrically to the voltage and current transforming device and having an outer end extending out from the housing, and at least one output connector connected to the current output wire for connection with an article to be charged. The output connector includes a pair of socket and plug connector parts, one of which is fixed to the current output wire and the other one of which is adapted to connect with the article to be charged.