The Milwaukee M18 REDLITHIUM High Output CP3.0 Battery Pack provides 50% more power and runs 50% cooler vs. M18 REDLITHIUM CP battery packs. This increased performance results in the same power and runtime of a M18 REDLITHIUM XC battery in a lighter and more compact package. The 18V battery pack delivers fade-free power and runs substantially cooler through heavy applications， allowing trade professionals to push their cordless tools throughout a wide application range. Displays remaining run-time with onboard fuel gauge. The REDLITHIUM High Output CP3.0 battery is fully compatible with all Milwaukee M18 solutions.