The Efest LUC V6 is a high-end intelligent charger that uses the display interface found in the previous LUC series designs. The large LCD screen displays voltage and the charging mode of each slot. Six slots work independently using features such as reverse polarity, short circuit and over current protection. The LUC V6 is compatible with a wide range of 3.6V/3.7V lithium batteries used in electronics cigarettes, flashlights, electric tools, instruments, meters and more. It also has an optional (car charger/usb cable).