Milwaukee M18 18-Volt 4.0 Ah Lithium-Ion XC Extended Capacity Battery Pack

Compatible with all Milwaukee M18 cordless tools, the M18 REDLITHIUM XC extended-capacity battery delivers 4 Ah (72 watt-hour) of run time-even in sub-zero temperatures. Each 18 volt lithium-ion battery is laden with new-age REDLINK circuitry engineered to prevent overloads and protect against cell-damaging discharge. Revolutionary cell monitoring and temperature regulation prolong this battery's operation and life expectancy, meaning fewer work interruptions and more recharges than ever. Professionals depend on heavy-duty, long-lasting performance and Milwaukee delivers with this 18 volt battery pack.|Compatible with all Milwaukee M18 tools and chargers (sold separately)|Resists drainage when not in use|Built-in charge meter|Durably constructed with welded frame and rubberized vibration/impact protector|Recharges in 60-minutes or less|3-year limited warranty|Includes: one 48-11-1840 M18 REDLITHIUM XC 4.0 extended|Best in class construction: integrated weld frame, cell separator, impact and vibration protective rubber|Versatility: powers more than 40 Milwaukee M18 cordless power tools|All-weather performance: delivers fade-free power in extreme jobsite conditions|3-year warranty|Compatible with all M18 chargers