A number of iPhone 5 handsets sold between September 2012 and January 2013 have been found to have problems regarding recharging and battery life and so Apple launched a barttery replacement program.
The company says that the issue affects a "very small percentage" of handsets and that they fall within a limited serial number range.
Apple has set up a dedicated webpage where they can enter their handset's serial number.
If it matches, consumers can take the affected phone to an Apple authorized service provider, to the closest Apple retail store or to have it changed remotely via Apple's technical support service.
The replacement program is already up and running in the US and China and will go live in other countries on August 29.