Detailed Description:

Designed to charge Nickel-Metal-Hydride or Nickel-Cadmium AA, AAA size rechargeable batteries (Note: must not be used for other types of batteries)

Features:
Recharge 2pcs or 4pcs of AA and AAA Ni-MH/Ni-Cd batteries at the same time
Powered by the supplied AC adapter when using at home/office, the AC adapter is supported by 100-240V AC or by the supplied DC car Battery charging protected by -delta V cut-off detection and 0 delta V cut-off detection
4-hour safety timer to prevent over charge
Automatic charging current selection for AA and AAA sizes
LED display for rapid charge/trickle charge/bad cell
detection/charge finish:
Red LED: rapid charge
Flashing red LED: trickle charge
Red and green LED flashing in turns: bad cell
Green LED: charge finish