Milwaukee's M18? REDLITHIUM? HIGH OUTPUT? CP3.0 Battery Pack provides you with 50% more power and runs 50% cooler vs Milwaukee's other M18? REDLITHIUM? CP battery packs. This increased performance of the lithium-ion battery gives you the same power and runtime of an M18? REDLITHIUM? XC battery in a lighter and more compact package. The 18-volt battery pack delivers fade-free power and runs substantially cooler through heavy applications, allowing you to push your cordless power tools throughout a wide range of applications. Milwaukee's REDLITHIUM? HIGH OUTPUT? CP3.0 battery is fully compatible with all 175+ Milwaukee? M18? solutions.