The DEWALT 20V MAX 10Ah Lithium-Ion Battery 2-Pack delivers maximum runtime for the most demanding job site applications. Each high-capacity 10Ah battery is compatible with the full range of DEWALT 20V MAX tools and provides extended working time between charges. The dual-pack format ensures you always have a charged battery ready to go. A built-in fuel gauge with 3 LEDs shows remaining charge at a glance.