Schumacher SC1339 Fully Automatic Battery Charger, 10A, 12VUse this Schumacher Automatic Battery Charger for most charging applications. Features LED indicators and button controls for ease and accuracy. Microprocessor controlled automatically adjusts the amperage rate to charge and maintain. For most charging applications LED indicators and button controls for ease and accuracy START STOP push button interface Heavy duty metal case Microprocessor controlled automatically adjusts the amperage rate to charge