Been using this power bank for a while now and i still love it.
I can say that if I had to replace my current power bank, I would definitely the same power bank again.
It activates quick charge on my phone (LG G5) and I can even use my phones cable to charge it.
I tend to use this device infrequently and sometimes I just have to grab it and take off without being able to pre-charge, I am very impressed with the length of time this product retains a full charge when not in use.
I was able to charge my phone 3 times, and my kindle 2 times and still had at least 30% battery life left.
Not only is it not very well made it probably also has the cheapest batteries in it.
I gave it to my younger sister because I would have never known when I would have to charge it due to low power which complicates the purpose of having it for myself since I bought it for school.
This has it limit use...it now charge at a very slow speed.
Since its out of the 30 day refund.
It worked fine for almost 9 months and then swelled up and fast charging is not working.