The LUC V6 OLED Charger is a six-slot charger with some high-tech features. The OLED screen displays the individual voltage and charging current of each slot, and the charge level of each battery. Overcharge protection, reverse polarity protection, and short circuit protection are all included. Its maximum charge output is 2A, which applies to one or two batteries. If all 6 slots are taken up, the charge output is .68A. The USB output allows the LUC V6 OLED Charger to act as a power bank for other USB devices.