The Milwaukee M18 B5-CR 18v Cordless Chemical Resistant Li-ion Battery is a powerful and reliable power source designed for use with the M18 range of power tools. The new resistant housing increases product life and provides chemical resistance to oils and fluids The M18 B5-CR battery features Redlithium technology, which optimises performance and protects against overload, overheating, and deep discharge. This advanced technology also enables communication between the battery and tool, ensuring maximum efficiency and prolonging the lifespan of both components. The M18 B5-CR battery is compatible with all M18 power tools, offering versatility and convenience. This means you can power a wide range of tools with a single battery, making it an essential investment for professionals and DIY enthusiasts alike. Features & Benefits • Can use in temperatures down to -20°C without compromising on run time and battery life • Durable metal frame battery construction with shock responsive separato