Apple today launched a exchange program in 36 countries for certain models of its 5W European USB power adapter



From MacRumors:

The affected adapters, which are identified as Model A1300, originally came with iPhone 3GS, iPhone 4, and iPhone 4S models that shipped from October 2009 to September 2012. Apple is allowing users to bring in the affected adapters to an Apple Retail Store or participating Apple Authorized Service Provider, and will give a new adapter after a corresponding iPhone serial number is verified.

  Apple Launches Exchange Program for 5W European USB Power Adapter