Compared to other Milwaukee M12 REDLITHIUM CP battery packs, the MILWAUKEE M12 REDLITHIUM high-output battery pack holds 25% more power and operates 25% cooler.
 
These lithium-ion battery performance improvements give you the same power and runtime as the MILWAUKEE M12 REDLITHIUM XC battery, but in a lighter, more compact package. 
 The 12-volt battery pack delivers fade-free power and runs significantly cooler in demanding applications, allowing you to propel your cordless power tool in a variety of applications. 
 Its compact, lightweight design allows you to work in tight workspaces and reduce fatigue. 
 Each battery pack is durable for heavy-duty use, operates cooler, and operates in climates down to 0F/-18C. 
 Additionally, the M12 REDLITHIUM High Output Battery Pack features a rugged casing that provides greater protection from exposure to oils, grease and solvents commonly found in shipping, maintenance and manufacturing environments.