Introducing the Milwaukee M18 FORGE™ 12.0Ah battery - a high-output pack offering the most power, fastest charging and longest life within REDLITHIUM™ range. Using Milwaukee's new FORGE™ technology, it delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0Ah battery. Perfect for high demand applications requiring extended run times, it uses COOL-CYCLE™ technology as an active cooling system to reduce downtime. It offers a 35-minute super charge to 80% with an M18™ dual bay super charger - not included. Features include: High output - 12.0Ah power for all compatible M18™ tools, Fast charging - fully charge battery in just 45 minutes, Super charge - charge to 80% in as little as 35 minutes, COOL-CYCLE™ - active cooling system for less downtime, Increased run time - perfect in high demand applications, Resistant housing - protection from oils, solvents or grease, Onboard fuel gauge - with readability in direct sunlight, REDLINK™ intelligence - performance and overload protection. This battery is compatible with all M18™ tools in the range. The resistant housing is designed to provide increased protection against oils, solvents, and greases. The onboard fuel gauge offers readability in direct sunlight.