MODEL: SCH609F 2 HOURS charger Input: 100V-240V 50/60Hz Input form: Desktop. Universal plug LED indication status: Red LED on梒harging Blue LED on梖ully charged and on trickle charging Red and Blue alternatively alarming桝lkaline and defective battery End of charge detection -Delta V, 0 Delta V, Temperature termination, Timer Charging current: AA X2 1000mA AA X4 500 mA; AAA X2 500mA AAA X4 250 mA Battery Rescue function Yes-Unique function(blinking impulse) to rescue or revive old infrequent used NI-MH batteries