The Q6 charger is the latest addition to the Nitecore Q family, Featuring a high maximum output of upto 2000mA (2A) Per slot with a total of 3900mA (3.9A) Overall output over the 6 bays. The Q series of chargers by Nitecore have all got the same simple and easy to use layout, red light for bay in use and green light for a fully charged battery. Made from safe, flame retardant and fire resistant PC materials and has an overtime protection circuitry which will stop charging after 15hours to prevent any damage that may be caused by poor quality batteries.