Use this cordless, battery-powered Hakko FX-901 soldering iron when the nearest power outlet is too far away, out of reach or not available at all. Powered by four (4) AA batteries (not included) the Hakko FX-901 produces a temperature up to 600° Fahrenheit for up to 120 continuous minutes. Other cordless soldering irons on the market spark, which can damage electronic components and butane, can ignite flammable vapors, causing serious injury. But the FX-901 is safe. No spark and no flame. This iron is the perfect tool for electricians, field service technicians, maintenance personnel, hobbyists and artist and home owners. Use it to solder electrical wiring, repair appliances, alarm systems, RC cars and jewelry, nearly anything that needs soldering where electricity is out of easy reach or unavailable.