I use the F-4S Foxnovo charger for more than a year and am very satisfied. Mainly I use the conventional Mignon (AA cell) and Micro (AAA cell) batteries, as well as special lithium ion battery of 18650 size, which are used predominantly in Modelbaubereich and in high-end flashlights. The Foxnovo F-4S has four charging stations and a legible LC display. The charger itself is processed very stable and of high quality. The integrated LCD is easy to read and shows the charging rate, flow and the capacity to reach. Once the inserted battery is fully charged or discharged, the dubbing automatically and a beep sounds. In the different battery charger can be used. As required, the contacts can be moved by a spring and different sized batteries are used. The charger automatically detects the inserted battery and supplies it with the necessary voltage and charging rate. A manual setting of the volts and amperes is not needed here. Supplied located next to the charger still a 230 volt power supply, and a user manual. Meanwhile I use the charger daily for a year. The device works reliably and quickly. I can recommend the charger without hesitation.