As a mi fan and mi phone user I can understand better how this powerbank is helpful, useful and powerful to me. It is really a very high power storage powerbank and it can full charge a mobile 4 to 5 times and it has a torch light which can be useful at dark and its dual charging ports helps me to charge 2 phones simultaneously. Yes as its having 20000 mah power so it takes a long time to recharge it. But after it reaches to 100% battery then its a hulk. That’s all I would like to say about it. Love for mi.