Abstract: A connector charger is disclosed, which is adapted to electrically connect to an external electronic device by a connection port arranged at an end of its casing while the connection port is electrically connected to a charging circuit device and at least a contact disposed inside the casing. By arranging at least a socket on the casing at a position corresponding to each contact for enabling rechargeable batteries to plug in the casing therefrom and connect electrically to the corresponding contact, the power of the external device can be transmitted to the connector charger by the electric circuit formed of the connection port, each contact and the electronic device, wherein the charging circuit device is enabled to convert the power of the external electronic device into electric current suitable for the rechargeable batteries and then the converted electric current is fed to the rechargeable batteries through the contact for charging the same.