This type of device is democratized in recent years and there are now emergency batteries of various capacities, sometimes enormous (10 or 15 Ah, or even more!) Here, the capacity is limited to 3 Ah, that that is not ridiculous (and in fact, equivalent or superior to most existing phones), which are suitable for various gadgets (cameras, mp3 players ...), provided they are recharged via a micro USB socket. But forget the shelves, capacity is not sufficient for this. And decision is not suitable for the iPhone.
Usage is extremely simple thanks to the integrated cable (the one to recharge the phone), but charging the battery itself is still with a standard USB cable to connect (NB. No wall charger is not provided.) This device is ultra compact and finish looks pretty good.
Personally, I would still have enjoyed a higher capacity, especially as we already are numerous references in the genre, but inevitably cost much more. But inevitably, it can not be as compact ...
