Overview: Input:100-240V AC, 50/60 Hz Output:1.2V DC 1800m AAA 1800m Ax 1, AA 900m Ax 3, AA 540m Ax 3, AA 450m Ax 4;AAA 900m Ax 1, AAA 450m Ax 2 AAA 225m Ax 3, AAA 225m Ax 4; The Charger can charge 1-4pcs AA/AAA Ni-MH/ Ni-Cd rechargeable batteries, LCD battery display. Charging by IC control, with -V intelligent cut off the rapid charging function, automatic transfer to trickle-charging, insure ssafety usage. The LED will be on & show its background for 2 seconds afterconnected with the power source, then off. There is letter "CHG" showing on LCD after battery loaded. The word "ERROR" which means defective or non-rechargeable battery loaded would be shown on the corresponding posititon on the LCD if such kind of battery loaded. And the coressponding battery photo would flash. Over-discharge protect, constand current charging can keep battery life, and insure safety usage. Over-temperature protect: (gt;60 centigrade use) the battery & charger temperature is too high & it will auto-cut off charging, insure safety usage. Auto-identify function, indicate the non-rechargeable battery, short-circuit battery, defective battery, then the charger will not charge to protect using safety. Refreshing battrey function:if the battery voltage getting less (0-0.9V), charger can refresh the batttery. Short-circuit protection: avoid the battery polarity " /-" short-circuit protect. Worldwide Voltage, Sutiable for the whole world. Power by cable & the cable is about 120cm in length. Allowing you to charge your batteries more conveniently. Specification: Product Weight Approx:980g Product Size Approx:11 x 6.8 x 3