Combining the flexibility of a cordless nailer with the power of a pneumatic, the Fusion15- and 18-gauge finish nailer line uses compressed nitrogen to drive the mechanism. The new technology eliminates the drawbacks associated with traditional gas- and battery-powered nailers, including fuel cell replacement costs, tool weight, and ramp-up times. Fusion uses an 18-volt lithium-ion phosphate battery that can reach an 80 percent charge in 15 minutes and Reflex Shot technology for added power and to provide up to 500 drives between charges.