Amazon Link: www.safelylink.com/unubatterycase

One of the worst things, ever, is when you’re iPhone’s battery alerts you that it’s low on battery power.What’s even worse is when you have a low battery and no way to charge your iPhone. A simple solution is to buy a battery case. In this review, I show you the Unu Battery case, in white, for my iPhone 4s.

Not only does it add durability and protection, but the 1700 mAh battery does a fine job in giving it a full charge. It’s like having double the battery life.