A few friends have been struggling with faulty batteries in their iPhone 5s. Hope this applies – the programme becomes available in Singapore on 29 Aug 2014.
“Apple has determined that a very small percentage of iPhone 5 devices may suddenly experience shorter battery life or need to be charged more frequently. The affected iPhone 5 devices were sold between September 2012 and January 2013 and fall within a limited serial number range. If your iPhone 5 is experiencing these symptoms and meets the eligibility requirements noted below, Apple will replace your iPhone 5 battery, free of charge.
To check your serial number eligibility, visit Apple’s iPhone 5 Battery Replacement Program page.