Upgrade your cordless tool performance with the Milwaukee 48-11-1820 M18 REDLITHIUM 2.0 Compact Battery Pack. Engineered for professionals who demand reliability and power this 18V lithium-ion battery delivers up to 2X more runtime 20% more power and 2X more recharges compared to standard lithium-ion batteries. With a compact and lightweight design it fits easily into tight workspaces and helps reduce user fatigue during extended use. Built with Milwaukee?s signature durability the battery operates efficiently in extreme conditions - even below 0?F (-18?C). The integrated REDLINK Intelligence system ensures optimized performance and protects against overloads while the temperature management system and individual cell monitoring extend battery life and maintain consistent power output. Whether you re powering drills saws or other M18 cordless tools this battery pack is compatible with over 40 Milwaukee M18 tools and all M18 chargers. The onboard fuel gauge keeps you informed of remaining runtime