The Nitecore Q6 6 bay battery charger provides six independent slots whereby you can charge your Li-ion batteries. Each charging bay automatically detects a battery's power level, allowing you to select the pertinent voltage/charge method and re-power six Li-ion batteries at a time. The Nitecore Q6 is fitted with the Active Current Distribution (ACD) technology designed to distribute power evenly across the six charging bays. The more batteries you charge, the less power they receive individually. When charging two batteries, you are advised to separate the cells into two different pair groups to receive the peak 2A charge speed. Nitecore can also activate depleted cells featuring built-in protection circuits.