... ,Charge 2/4pcs NI-MH/NI-Cd AA/AAA or 2pcs NI-MH/NI-Cd 9V batteries 2,Powered by AC ... 25mAEnvironmental Conditions Ambient Temperature0°C to 40°C/Best at 25±2°CStorage Temperature-20°C to 60°C/Best at 25 ±5 ... battery size. There are battery chargers specifically for AA, AAA, C, D, 9 volt capacities. There are also Universal Chargers ... Intelligent. for electrical products AA/AAA NI-MH/NI-Cd battery charger