The DeWalt DC9096-2 is a 2-pack of 18V XRP Extended Run-Time Batteries that deliver 40% more run time than standard batteries. They are high capacity 2.4 Amp-Hour batteries with new cobalt technology which produces extended run time. The Ni-Cd cells used by DeWalt in the DC9096 offer consistent performance in a wide variety of climates and applications.The DeWalt DC9096-2 batteries are for use with all DeWalt 18V cordless tools.