Battery-operated tools are more sustainable, and they do not rely on fossil fuel. They also do not produce carbon emissions, and they are not as noisy. Another benefit to a battery-operated tool is not having to replace spark plugs and carburetors, as well as not having to mix fuels, or deal with the smell of fuel odors. They are also safer because they do not have the idle mode like the gas-powered options do. This means that if the operator takes his or her finger off the trigger, the machine automatically turns off. This ensures the safety of both the operator and the machine. Another safety factor is that operators do not have to store fuel in a closed trailer.