The 18V XC High Capacity LITHIUM-ION Battery pack offers increased run-time with 40% less weight than an 18V NiCad battery. Milwaukee's Digital Power Management helps to ensure that optimal battery life and run-time is achieved, while protecting the battery and tool during the toughest jobsite applications

• The M18 Lithium-Ion Battery has the equivalent run-time of an 18V NiCad with 40% less weight
• The Milwaukee™ digital power management system allows for temperature management, overload current control and cell voltage monitoring that extends pack life, prevents burn-up and optimizes run-time
• The battery fuel gauge displays the remaining run-time on the battery so you know when to change batteries or recharge them
• Has a 2-year 2,000 Charge Warranty

The M18 Battery Technology is a new design of the Lithium-Ion Battery and is not compatible with older Milwaukee tools