If you are owner of a Apple iPhone 5 and battery of your Phone is not working fine then I have a really good news for you that Apple is giving free batteries for iPhone 5 Phones which were bought between September 2012 to January 2013.
the reason for this is that many Phones which were bought between this period noticed a sudden shorter battery life so Apple decided to give free batteries for Phones sold in that period by starting iPhone 5 Battery Replacement Program.
First this program was only started in United States and China but now it is launched worldwide.
to check if your Phone is eligible to receive a battery or not visit this link and enter the serial Number of your Phone:
you can find Serial number by going to Settings > General > About.
you will also have to create a back up of your Phone data on iTunes or on iCloud and turn of the Find my Phone feature before starting the process.
Remember if your Phone was bought between September 2012 to January 2013 then it will not be eligible for this program.