Lincoln Electric Century battery charger is designed to handle the majority of your charging and starting needs. High and low charge rates for most battery sizes. High-amperage engine start to help start vehicles when the battery is too weak to do the job alone. An ammeter to monitor charging progress. LED’S – reverse connection and abnormal battery red light, charging and charge complete green light. Saw-tooth clamps assure good connection to top or side-mount battery terminals. Charges 6 and 12 volt maintenance free conventional wet, AGM and batteries used in cars, trucks, farm equipment, RV and commercial applications. Heavy-duty construction for long, trouble free life. Deep cycle setting for a fully charged deep cycle battery. Manual settings for charging deeply discharged batteries that automatic chargers cannot charge. Heavy duty clamps for good connections. Red LED status light ON – reverse hook up blinking – abnormal condition (wrong voltage selected or bad battery). Green LED status light ON – battery is charged blinking – battery is charging. This LED only works in an automatic setting. 100 amp engine start helps start stubborn 12V motors. Rate and charging mode switch automatic settings: 2A, 12V for motorcycle, snowmobile, lawn and garden or other small batteries. 15A, 12V for automobile, truck, farm equipment and other medium to large batteries. 15A, 12V Deep cycle for deep cycle batteries. Manual Settings: 2A, 12V for motorcycle, snowmobile, lawn and garden or other small batteries. 15A, 12V for automobile, truck, farm equipment and other medium to large batteries. 15A, 6V for automotive, truck, farm equipment and other vehicles that have 6V lead acid batteries. 100A, 12V Start for starting a 12V vehicle with a battery that is discharged. Only try to start for 3 seconds, then allow the charger to cool for 400 seconds to avoid damage. Manual settings do not shut off and the battery charge level must be monitored to avoid over charging and damaging the battery. Charges automotive batteries in 2 to 5 hours.