The mobile phone universal charger standard was promulgated on June 2006 1 14, and officially implemented on June 2007 14, and was enforced. According to the standard, the universal charger will take the form of a USB data cable and a mother charger with USB port to solve the problem of incompatibility of mobile phone chargers for many years. 2009123 October, as one of the efforts to mitigate climate change, the International Telecommunication Union announced on122 October that it had approved a solution of energy-saving universal mobile phone charger. This scheme will make all future mobile phones use the same charger, regardless of their manufacture and model.