1) From 15min ultra fast smart charger to all-night-on standard charger 2) Charges AA, AAA, 9V, C and D Ni-MH ... safety features): 1) Voltage monitoring function, -ΔV control, auto switch to trickle mode after fully charged 2) Safety timer, auto cut off ... 3) Temperature monitoring function, over-heat protection Specifications: 1) With switch power, worldwide voltage AC 100 V - 240 V 2) LCD ...