Apple has identified a flaw in some Macbook USB-C charging cables and has issued a recall note on its website for those that are affected. Cables made through to July 2015 have a design fault, this could mean that your Macbook may not charge or charge intermittently. Apple will replace all cables free of charge with redesigned cables and includes any affected cables bought as accessories.
The USB-C type connection and associated cable was introduced with the Macbook in March 2015, it combines many functions, such as power, data, video input/output into just one port.
Affected cables have “Designed by Apple in California. Assembled in China.” stamped on them. New, redesigned cables include a serial number after that text, as shown in the image below.
Apple say the for MacBook owners who provided a valid mailing address during the product registration process or Apple Online Store purchase, Apple will send you a new cable by the end of February 2016.
All other eligible MacBook owners should use the replacement process to receive a new USB-C charge cable.