The DeWalt DCB182 18V XR 4Ah XR Li-Ion Battery is a powerful and reliable battery designed for use with DeWalt tools and equipment. With a high-capacity 4Ah lithium-ion battery technology, this black battery delivers consistent and long-lasting power for your tools, ensuring that you can work efficiently without the need to constantly recharge. The 18V voltage also provides ample power for a wide range of DeWalt tools, making it a versatile and essential accessory for any DIY enthusiast or professional tradesperson.