I really like this battery pack. I travel on business and lots of airplane seats phone charging ports don't work. I also use this to change a tablet I use for presentations. It's just a good all around backup. Be advised that this unit is beefy. This isn't a complaint because that's how you get the extra capacity. But you should be aware that this isn't going to fit in your pocket. It's something that stays in your backpack or brief case.