Features and specifications:
1) Charger input: DC 12V 1.25A
2) Charging output: 
    a) DC 1.4V 1,400mA (AA)
    b) DC 1.4V 600mA (AAA)      
3) Operating temperature: 0 - 35oC
4) Size (W x L x H): 65 x 107 x 27mm 
5) Weight: 92g (batteries not included)
6) AC Adapter:  
    a) Input: AC 100 - 240V, 50/60Hz                       
    b) Output: DC 12V, 1.25A
7) Charges 1 - 4 AA / AAA Ni-MH or Ni-Cd rechargeable batteries
8) 4 independent channels
9) 4 LED lights, indicating charging status of each channel
10) Switch power, worldwide voltage 100 - 240V
11) Over voltage and over heat protection
12) Safety features:
     a) Voltage monitoring function:
         i) -?V control
         ii) Auto switch to trickle mode after fully charged
     b) Safety timer: auto cut off after 2 hours of standard charging
     c) Temperature monitoring function: over-heat protection
     d) Bad battery, alkaline and primary battery detection