This charger has a few advantages:
- It allows to fully charge your smartphone, without electricity, not only to provide a "power boost". We talk about full and complete charging.
- Is "intelligent" ie its iSmart technology allows it to adapt to the connected device. If it is a smartphone, amperage will be adapted, if a tablet, amperage will be more consistent. In all cases, it delivers a current which will be adapted to the product, and it saves the life of your smartphone / tablet (too much current batteries degrade quickly our iDevice).
- It is light and small, but nevertheless offers 7800 mAh. This is an important capability, with my iPhone 5S, I can load it 4 times before the battery is exhausted (a part of the battery is used for the proper functioning of the battery itself).
- It recharges quickly, ie count ~ 4 hours for a full charge with an iPad charger 2A
- It presents with its LED indicator remaining charge
- It starts charging as soon as you connect to a device and stops when you disconnect a device (no need to think about turning on or off)
In summary, I have no negative points on this high-performance capabilities to giant charger. A reasonable purchase and built to last.