The skinny: a $35 iPhone 6 case that carries a 3,800 mAh battery. That’s 125% the amount you have on your phone to start with so you’ll more than double your run time with this case. The MOTA Smartphone Battery Case also is made from lightweight and sturdy materials to keep your phone protected, has 4 LED lights to easily indicate the percentage of power remaining, and comes with a built-in kickstand for comfortable video viewing. All this for $35? That sounds like a deal to us.