Millenium CH4 5-Hours Universal Nickel-Metal Hydride Battery Charger Fully charge up to five different sizes of batteries: AA, AAA, C, D, or 9V Charging is controlled by a Microprocessor and automatically selects the charge current for different types of batteries LED to indicate status of charging AA, AAA, C or D size batteries charge in only five hours 9V batteries charge in 14-16 hours