Here's a great Powerbank by PNY! I'll start with one of the most important aspects in my opinion: the format! My previous was certainly a little more powerful, but just ... huge practical level it is not top, carrying a contraption that is twice the size and four times the weight of the phone ... With this one I won! It is not only discreet and sober, but lightweight and compact. First goal achieved handily! Then mobile loading level after many uses (my Motorola Razr hold a charge very badly ...), it is that it can charge up to 3 times it completely, and in a relatively quick time. Reload my kindle? No problem either, perfect! It can charge two devices at the same time, which is clearly useful when a friend who forgot to load hers also ^^ Level building is a Powerbank like any other, neither better nor worse, suddenly thinking of buying a pocket or a protective box to avoid damage. An excellent product that perfectly meets my expectations!