According to Western sources, since May 7, the U.S. Postal Service USPS stops to send and receive electronics, which has a lithium battery. It mainly impacts on iPhone, iPad, Kindle , laptops and other mobile phones.
According to the regulations of various international organizations including the International Civil Aviation Organization (ICAO) and the Universal Postal Union (UPU), lithium batteries can not be sent in the mail an international commercial air transport
In accordance with these requirements, the U.S. Postal Service ( USPS ) prohibits the transportation of lithium or lithium-ion batteries on commercial aircraft to international destinations. On May 7, 2012 , these changes will take effect.
Under the changes, lithium batteries (installed in electronic gadgets) will be allowed to be sent by mail to foreign destinations.