Features:1) Takes AA and AAA batteries2) -?V control with auto cut off function3) Individual safety timer4) Overheat and overcharge protection5) Detection of non-rechargeable cell6) Will not start charging process if +/- polarity is reversed7) When charging, different batteries can be mixed either in sizes or in capacities8) Able to charge a single cell9) Trickle charging after fully charged10) Stable, accurate, efficient and safe11) Car kit available12)led indicatorsSpecifications:1) Input: AC 100V-240V, 50-60 Hz2) Output: x 4/700mA, x 2/1000mA3) Trickle charging current: 50mA4) Charging mode: CC/CV producing area:China