The DEWALT DCB205 20V 5Ah MAX XR Lithium Ion Power Tool Battery is a genuine OEM battery with a 5.0 Ah capacity. It uses Lithium-Ion battery technology and has a voltage of 20V. The battery is designed in yellow and black colors, with a height of 3 inches and a weight of 1.4 pounds. It is suitable for various power tools and air tools.