The DEWALT Powerstack DCBP518 5.0ah 18v Battery utilises pouch cells to give you greater productivity than before. Get 50% more power* enabling faster application speeds and increased productivity with more than 50% more work per charge** using this battery that works with all the 18V XR tools you already have. This DCBP518 battery provides twice the lifetime*** and features an impact-resistant, overmolded base with non-marring material. Powerstack battery technology - the most powerful, compact and lightest weight battery. The next dimension of power is now available in 5.0ah *vs. DEWALT DCB184 battery, not in application **Usable energy vs. DEWALT DCB184 battery, not in application ***Charge cycles vs. DEWALT DCB184 battery. Includes a twin pack DCBP518H2 (2 x Powerstack 5.0Ah DCBP518-XJ) of DCB115 Battery Charger Dewalt DCBP518 Powerstack Features Higher max watts out, so there's a greater range of applications Faster speed of application, giving you increased output and more jobs