1. Input: AC 220V 5OHz 2. Output: 2.4V DC 300mA, 9V DC 35mA, AA 150mA x 2, AA 150mA x 4, AAA 150mA x 2, AAA 150mA x 4 3. It can charge 2 or 4 pcs AA/ AAA and 1 pcs 6F22(9V) Nl-MH/Ni-Cd rechargeable batteries. 4. LED show the chargingt process. 5. Charge for 2pcs of batteriea in series. It can not charge single battery.