8500mAh Power Bank Case for iPhone 6, 7, 8
Instead of a separate power bank, why not utilize the one that attaches to the phone protective case? This iPhone case hides something that could increase the battery life — an 8500 mAh extra battery is connected directly to the phone charging port and constantly gives power to the phone whenever you need it.
The case is made of flexible polycarbonate material to ensure maximum protection from every angle. At the bottom, it still leaves the Lightning port on the side to allow recharging and transferring data at the same time. The case is compatible with iPhone 6s Plus, 6 Plus, 7 Plus, and 8 Plus.