Milwaukee's M18 REDLITHIUM XC5.0 Extended Capacity Battery Pack (48-11-1850) included in this bundle enhances runtime and overall productivity across the M18 platform. Engineered with advanced REDLITHIUM technology and REDLINK intelligence, the batteries maintain consistent power delivery while helping protect against overload and overheating during heavy-duty use. The extended-capacity design supports longer operation between charges, making it ideal for high-demand jobsite environments. Together, this 2-tool combo kit and XC5.0 battery pack provide a balanced cordless system built for professionals and DIY users who need dependable performance, extended runtime, and multi-surface capability in one coordinated platform.