Smart Battery Case for iPhone 11, iPhone 11 Pro, Pro Max Leaked by iOS 13.2
https://wccftech.com/smart-battery-case-for-iphone-11-iphone-11-pro-pro-max-leaked-by-ios-13-2/
iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max Smart Battery Case is real and iOS 13.2 confirms it. They could be released this week.
The one thing the iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max don't need is a Smart Battery Case from Apple. But it seems as though it has become a tradition from Apple to release one anyway every year for its flagship and this year is not going to be different in anyway.