Multi purpose charger

This charger can charge 2 or 4pcs AA/AAA and 1-2pcs 6F22(9V) NI-MH/NI-CD rechargeable batteries. It has two LEDs that shows the charging process of the batteries,they would not turn off after the batteries are full charged, the constant current and voltage gives the battery longer using life. charge 2pcs of batteries in series.it can not charge single battery.