Charging Time 2-3 hours. Charges 2 or 4 AA & AAA batteries at a time. Microprocessor controlled. Batteries life well protected by - delta V detection and timer protection. Unique design-with an adjustable battery contact plate that makes a good and solid contact with AA & AAA batteries. Automatic charging current selection for size AA & AAA. LED display for rapid charge/trickle charge/bad cell detection. Powered by supplied AC adapter at home/office. Car cord/kit included, Charge your batteries as you drive.