The DEWALT Powerstack DCBP518 5.0ah 18v Battery utilises pouch cells to deliver 50% more power, enabling faster application speeds and increased productivity. It offers more than 50% more work per charge compared to previous models and works with all existing 18V XR tools. This DCBP518 battery provides twice the lifetime and features an impact-resistant, overmolded base with non-marring material. Powerstack battery technology represents the most powerful, compact, and lightest weight battery in its class. The next dimension of power is now available in 5.0ah. Powerstack batteries offer higher max watts out for a greater range of applications, faster speed of application for increased output, and improved thermal performance as pouch cells run cooler and dissipate heat better than cylindrical cells. This leads to fewer hot pack shutdowns, less downtime, and more productivity. The batteries also have increased cycle life for better performance over time and are fully backwards compatible with all DeWalt XR 18v Tools.