Delivers More Runtime, Power and Speed Than Standard Lithium-Ion Batteries. The M18™ Compact Redlithium™ Battery Is Designed With Superior Pack Construction, Electronics and Performance to Optimize Work Per Charge and Work Over Pack Life. It Offers 1.5 Amp-Hours Of Runtime. With Built-In Milwaukee Durability, This Battery Runs Cooler and Performs In Climates Below 0°F/-18°C. Its Compact, Lightweight Design Fits In Tight Work Spaces and Reduces User Fatigue. Managed By Milwaukee'S Exclusive Redlink™ Intelli