Apple still investigating iPhone 6s battery issues


Apple issued a bulletin in China that appears to expand on the company's repair program. The company said it will issue an iOS update to help gather diagnostics on the issue.

Apple stresses this it doesn't believe this is a safety issue.

As a result of our investigation on this, we found that a small number of iPhone 6s devices made in September and October 2015 contained a battery component that was exposed to controlled ambient air longer than it should have been before being assembled into battery packs. Two weeks ago, we launched a worldwide program to replace affected batteries, free of charge. We again apologize for any customer inconvenience. It's important to note, this is not a safety issue.

A small number of customers outside of the affected range have also reported an unexpected shutdown. Some of these shutdowns can occur under normal conditions in order for the iPhone to protect its electronics. In an effort to gather more information, we are including additional diagnostic capability in an iOS software update which will be available next week. This will allow us to gather information over the coming weeks which may potentially help us improve the algorithms used to manage battery performance and shutdown. If such improvements can be made, they will be delivered in future software updates.