Power your tools like a pro with this Milwaukee M18 REDLITHIUM HIGH OUTPUT XC8.0 Battery Pack. It provides 50% more power and runs 50% cooler versus M18 REDLITHIUM XC battery packs, delivering high performance with each use. The battery provides increased power in extreme-cold weather conditions (below 0 degrees F/minus 18 degrees C) and can handle the toughest jobsites. This extended capacity battery is fully compatible with all 250+ Milwaukee M18 solutions.