THE New high capacity packs are designed to store more power providing XR tools with longer runtime yet remaining Lightweight, the 5.0 AH batteries are the same size and weight as standard 3.0 AH batteries. A State of charge indicator on all 18V tools reassures professional users that there is enough power left in the battery to complete an application. The DCB184 is Backwards Compatible with any XR tool of the same voltageXR Lithium-ion is the premium DeWALT cordless platform. Features and Benefits: The new DEWALT 5.0Ah XR Li-Ion battery packs will deliver 66% more runtime than a standard 3.0Ah battery pack. LED State of Charge Indicator helps manage pack charging. Lightweight design provides the user with upgraded 5Ah Power without increasing the size or weight over the 18V 3Ah battery pack. No memory effect and virtually no self-discharge for maximum productivity and less downtime. Compatible with all DEWALT XR Li-Ion 18V Tools. Protection against overheat, overload and deep discharge conditions increases battery life. Excellent electrical characteristics.