The Milwaukee M12 REDLITHIUM HIGH OUTPUT CP2.5 Battery Pack delivers 25% more power and runs 25% cooler than other Milwaukee M12 REDLITHIUM CP battery packs. This increased performance of the lithium-ion battery gives you the same power and runtime of a Milwaukee M12 REDLITHIUM XC battery in a lighter and more compact package. The 12-volt battery pack 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. Its compact . lightweight design allows you to work in tight workspaces and reduces fatigue. Each battery pack is durably built for heavy-duty use . runs cooler . and performs in climates below 0degreesF/-18degreesC. in addition . the M12 REDLITHIUM HIGH OUTPUT CP2.5 is built with a resistant housing . providing increased protection against exposure to common oils . greases . and solvents found in transportation maintenance and manufacturing environments. The Milwaukee M12 REDLITHIUM HIGH OUTPUT CP2.5 is fully compatible with 125+ M12 solutions. Delivers 25% more power and runs 25% cooler Provides the power of an XC battery in a compact size Versatility: Powers all 125+ M12 cordless solutions REDLINK Intelligence: Our battery circuitry provides optimized performance and overload protection using total system communication between tool . battery and charger Best-in-class construction: Resistant housing designed to provide increased protection against exposure to common oils . greases . and solvents All-weather performance: Delivers fade free power in extreme jobsite conditions