Amazon.com: Battery Case for iPhone 6 Plus / 7 Plus / 8 Plus, 8500mAh Portable Battery Pack Rechargeable Protective Smart Battery Case for iPhone 6 Plus / 7 Plus / 8 Plus
Smart Battery Case Teardown - iFixit
純正】 iPhone 7用 Smart Battery Case ホワイト MN012AM/A|の通販はソフマップ[sofmap]
Apple's new Smart Battery Cases sport larger capacity than previous versions