Quick Battery Charger (CHB-7NSD/ CHB-7NWD) Input: AC100~240V 50/60Hz, 6W DC11-13V (car adaptor) Output: DC 2.8V 1000mA (AA)/400mA (AAA)*2 500mA (AA)/200mA (AAA)*4 Overall Dimension: 110*65*30mm Weight: 110 g (charger only) Operating Temperature:0~40°C 1.Microprocessor controlled, Switch to trickle charge mode automatically, ensure batteries are 100% full charged. 2.With full function of overcharging protection: over voltage, overheat. 3.Refresh Function: Detect & Rescue over-discharged or lower quality battery automatically. 4.Charge anywhere, in home or car, boot RV or any power source. 5.Fast charging, 1-3 hours depending on battery types, condition and combination. 6.For 2(or4) AA/AAA type of Ni-MH and Ni-Cd rechargeable batteries. 7.Worldwide voltage input AC 100~240V, Easy for traveling abroad.