The quick charge works great and can go from almost dead to fully charged in a couple hours provided you have the right charger

Charges phones faster than a wall outlet and lasts for multiple charges fast charging of both my phone and my battery

If i use the supplied anker cable with the battery to charge my phone my phone charges faster than it does in an outlet with my phones original charger and cable

Needless to say that we are frequently sharing the twoport charging capabilities of the anker powercore 13400 battery and even when charging two devices simultaneously they charge nearly as fast as they would individually from a wall outlet