References in iOS 13.1 point to Smart Battery Cases for iPhone 11, Pro
Apple is planning to bring out a new version of its Smart Battery Case for the 2019 iPhone lineup, with updated versions thought to be on the way for the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max.
The Smart Battery Case is an Apple-produced accessory for the iPhone lineup, one that houses an extra battery within the case's back to provide more power to the iPhone throughout the day. While unusual in its design, the accessory has been popular enough for Apple to produce multiple versions, and seems to be preparing to introduce more for the latest iPhone launches.
References to three new models of Smart Battery Case were found within the code of iOS 13.1, Apple's update arriving on September 24 alongside iPadOS. The model numbers found in code of the under-beta operating system are A2180, A2183, and A2184.
While there is no indication of what models they relate to, the closeness of the numbers found by 9to5mac suggest they are all related, and could be for the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max, though which model number relates to which iPhone variant is still a mystery at this time.