Great battery pack had a mophie since 2013 and it’s really starting to age build quality wise needed a replacement and this was the most convenient optionmost power banks with the ability to charge two phones at once without dying and have similar mah are over priced and to big this bower bank is around the same size as my iphone 7pus so it’s less of a pocket sore felt like the battery life in this couldn’t sustain for very long