iPhone XS and XS Max Smart Battery Case contains 10.1Wh battery, 13% larger capacity than previous cases - 9to5Mac
Apple Releases Smart Battery Cases for iPhone XS, XS Max and XR, Qi Wireless Charging Supported - MacRumors
✓Apple Battery Case -iPhone 11 Pro Max/ iPhone iPhone XS/iPhone 7- Black / White | eBay
Tested: Using the iPhone XS Smart Battery Case on the iPhone X | AppleInsider
Amazon.com: Battery Case for iPhone Xs/X, Rechargeable 6500mAh Portable Charging Case Extended Battery Pack Cover Power Bank Charger Case for iPhone Xs/X[5.8 inch]-Black : Cell Phones & Accessories
7000mAh For iphone XS Max Battery Case For iphone X XS Smart Power Bank Charger Cover for iPhone XR External Bank charger Case|Battery Charger Cases| - AliExpress
Amazon.com: MAXBEAR Battery Case for iPhone Xs Max, 10000mAh Slim Portable Protective Charging Case Compatible with iPhone Xs Max (6.5 inch) Rechargeable Battery Pack Charger Case (Black) : Cell Phones & Accessories
Best Buy: Apple iPhone XS Smart Battery Case Black MRXK2LL/A
Mophie Juice Pack Access - Ultra-Slim Wireless Battery Case - Made for Apple iPhone Xs Max (2,200mAh) - Black - Walmart.com
iPhone XS Max Smart Battery Case - White - Walmart.com