Detailed Product Description
Features:

1) Suitable for: 1-4pcs AA/AAA 1.2V or 4.8V (4 x 1.2V) battery packs 

2) 4 individual charging channels with front and back

3) Delta-V control and over-heat protection

4) Bad battery auto-detection

5) Build in microprocessor controller with auto stop function

6) Automatically switching from charging to trickle charging in the end
7) Two LED display indicating charge status

8) Charge current:

    a) 800mA for AA/AAA batteries

    b) 200mA for 4.8V battery packs