The Infapower Universal fast battery charger is easy to use and ideal for any household charging all the different sizes (D,C,AA,AAA,9V PP3) of rechargeable batteries. The Infapower Universal Battery Charger can charge 1 to 4 x AA, AAA, C or D batteries and 1 or 2, 9V rechargeable batteries. It has a built in battery tester and discharge function along with LED battery status indicators. This universal multi charger has a manual timer switch so you can set the charge to 3, 6, 9 or 15 hours. The charger also has a thermal cut-off to prevent overcharging.