According to China Business News, Apple has reportedly shifted its battery production orders for the iPad and MacBook to Chinese battery makers Amperex Technology Limited (ATL) and Tianjin Lishen Battery, as the original manufacturer Samsung SDI has stopped supplying Apple. This could explain one of the supply chain problems Apple has been experiencing with Hon Hai's production line slow down. The news out of China didn't fill in the blanks regarding the status of iPhone batteries.