Safety Standard: CE UL Voltage: AC 120V 60Hz or 220V 50Hz or 230V 50Hz Color: Black Packing: clamshell Meas(cm): 62.5?29.5?40.5 N.W.(Kg): 15 G.W.(Kg): 16 Features: 1. 2pieces or 4 pieces AA/AAA batteries select charge 2. Charging current: AA size 1000mA AAA size 400mA 3. Charging time : AA /AAA size 100-120mins 4. Led indicate for standby state and charging state 5. Trickle pre-charge and trickle maintain function 6. Adopt non-continuum pluse current charge to lick the memory effect, be good to improve the charge efficiency, reduce the temperature of the battery that cause the battery will good performance and last longer cycle life 7. Convenience to use in charging I-door by AC adaptor or out-door by car cigarette plug connector