Charges 2 or 4 pieces of Ni MH D/C/AA/AAA & 1 to 2 pieces of 9V size batteries. For your convenience. Charger comes with separate lead & AC adaptor (not shown in picture), so it can be placed on any surface whilst in use. Automatic charging current selection. 3 LED indicators (2 for D/C/AA/AAA, 1 for 9V batteries). Safety guaranteed for both you & the batteries. This is a great price for a charger which is compatible with all the primary battery sizes.