Apple has
posted a message on its Chinese website to address
unexpected battery shutdowns affecting some iPhone 6s models, noting the issue is related to some batteries having been overexposed to "controlled ambient air" during the manufacturing process (via
Business Insider).
Apple added that iPhones are designed to shut down automatically under certain conditions, such as extremely cold temperature. In this case, some iPhone 6s models are shutting down with around 30% battery percentage remaining to protect the device's internal components from low voltage.
Apple said it has investigated other factors that could potentially cause an iPhone to shut down unexpectedly, but it has not identified any new factors. Nevertheless, the company said it will continue to monitor and analyze customer reports. Apple reiterated the battery issues are not a safety concern.
Apple
launched a repair program earlier this month offering free battery replacements for affected iPhone 6s models. These devices fall within a limited serial number range manufactured between September 2015 and October 2015. Apple has since launched a tool to
check if your serial number is affected.
Apple is also offering refunds to customers who previously paid to have their eligible iPhone 6s battery repaired or replaced. Apple recommends customers experiencing iPhone 6s battery issues visit an Apple Store or an Apple Authorized Service Provider, or
contact Apple Support.
Article Link:
Apple Says iPhone 6s Shutdowns Result of Manufacturing Issue Causing Batteries to Degrade Faster