Powerful jump starter will start up to 40 vehicles between charges, depending on size and condition: Small cars, small pickups, full-size cars, SUVs, medium-duty trucks, buses, medium and large RVs, medium and large boats, semi trucks, ag equipment and off-road equipment.Dual ES Series AGM batteries.Automatic charging circuitry protects against overcharging.12V power outlet provides on-the-go power.Extra-long 54in. cold-weather rated 4-gauge cables with Hot Jaw clamps.Wall charger and 12V vehicle charging cord.Model ES6000.