The MILWAUKEE M12 REDLITHIUM HIGH OUTPUT XC5.0 Battery Pack delivers 25% more power and runs 25% cooler than our other M12 REDLITHIUM XC battery packs. The increase in power elevates the performance of the entire M12 system. The lithium-ion battery delivers fade-free power and runs substantially cooler through demanding applications, allowing you to push your cordless power tools throughout a wide range of applications. Each battery pack is built for heavy-duty use, runs cooler, and performs in climates below 0?F/-18?C. In addition, our M12 REDLITHIUM HIGH OUTPUT XC5.0 is built with a resistant housing, increasing the protection against exposure to common oils, greases, and solvents found in transportation maintenance and manufacturing environments. Our M12 REDLITHIUM HIGH OUTPUT XC5.0 is fully compatible with 125+ M12 solutions.