4 hours of use after just 45 minutes of charge!A simple, safe and reliable solution for your daily power needs, this charger can charge 4 AA batteries in 4 hours. It has partial charge indicator, automatic shut-off to prevent overheating and nine safety features mean safe use and money saved on disposable cells.45 Minutes Value Battery Charger is your simple, safe and reliable solution to never missing out on anything that happens in your life. This high-speed charger can charge 4 AA batteries in just 4 hours, making it 75% faster than other competitors. The Duracell Value Charger comes with a partial charge indication. Its nine safety features make sure that you have the power you need without the worry.