Processing proceeds absolutely fine. The case is stable and the spring mechanism for chucking the batteries goes loose by hand. The power supply delivers 650mA. This is slightly less than 4 slot version of Foxnovo creates (1A rapid charging mode), but you can upload here more batteries. On comfort functions such as display, capacitance measurement is dispensed with entirely.
The charge level is simply displayed in 3 steps by orange LEDs. If the batteries are charged, the 3 LEDs remain permanently available (There is no beep). All in all I am satisfied. Who wants to invite many batteries at the same time and no comfort functions needs, can strike. The only complaint is again the power supply: Although this works PROBLEM-and noise-free, but bears no Intertek / TÜV / GS mark. For me, actually very common in displaced persons in Germany products. Because I let Li-Ion never eh unattended load over 3000mAh, no reason for me to star deduction.
Also worth mentioning is the USB port on the right side, with the same time you can charge USB devices. Tested with a S5, this output provides at least 1.25A.