Hitachi NR90GC Clipped Head 2-Inch to 3-1/2-Inch Cordless Gas Framing Nailer  (Discontinued by Manufacturer) Gas-powered cordless framing nailer with a 7.2-volt battery Fires 1,200 nails per fuel rod and 4,000 nails per battery charge Heavy-duty construction with a double-lock fuel compartment Includes one 7.2-volt battery, 1-hour charger, and carrying case Weighs 7.7 pounds; 5-year manufacturer's warranty