Review: Anker's Ultra Slim Battery Case for iPhone 6 offers a surprising mix ...

9 to 5 Mac (blog)Review: Anker's Ultra Slim Battery Case for iPhone 6 offers a surprising mix ...9 to 5 Mac (blog)Its new Ultra Slim Battery Case for iPhone 6 ($60 on Amazon) is another example of that formula. Unfancy but more polished than similarly budget-priced rivals such as uNu's DX-6, it's not the most powerful or beautiful iPhone 6 battery case I've tested ...