This power bank has an excellent capacity for its size (10000 mAh). It is the right size to fit in your small gadget bags or backpack pouches. Very easy to operate and clear LED display shows how much charge is left with the push of a button. It would make a great addition to your emergency kit specially it you live in an area like Puerto Rico were power outages are common lately. I only wish it had at least one more charging outlet, that would de AWESOME (added value and higher rating).