I am very happy with the iTorch external battery's performance. Once I opened up the packaging and saw how well built it is I was very impressed. This is by far the highest quality external battery I have used to date. I am an avid iPhone user since I need it to run my business off of, so I usually run out of battery about half way to three quarters of the way  through the day. I've tried out several external battery cases, but I don't like the additional bulk and weight that a battery case adds. So I decided to opt for a external battery. The iTorch seemed to fit the bill nicely, it has a built in laser pointer, a simple little LED flashlight, and a nice battery level indicator. Here's are some of the pros that I liked about the battery.