Good surprise on the quality of material! perfect delivery as usual with amazon The holding of the batteries is very good. Convenient to load on mains with a power cord (not just USB). In the events so it still takes several batteries available continuously (rapid charging via sector) the correct charger does the job and ability to recharge the original battery. Small boxes for batteries not that traines bare in the storage case with the other accessories. very good pack I recommend, for the price it's a steal!