Description:18V XC RED LITHIUM Li-Ion Fuel Battery 4.0Ah For Milwaukee M18<br>Battery Voltage:18VBattery Type: Li-IonCapacity: 4000mAh<br>Features:RED LITHIUM: Up to 40% More Run-Time， 20% More Speed， 20% More Torque   4.0 amp hour - 72-watt hour batteryLithium-ion battery delivers long life and run time with fade-free powerFuel gauge displays remaining runtimeOverload ProtectionIntelligent circuitry provides optimized performance and overload protection using total communication system between tool，battery and charger.Integrated weld frame， Cell separator， Impact and vibration protective rubber.Compatible with all M18 ToolsAll-weather performance: Delivers fade-free power in extreme jobsite conditions.<br>Package included:1x M18 XC 4.0 RED LITHIUM Battery