Delivers more runtime, power and speed than standard Lithium-Ion batteries. The M12 XC high capacity REDLITHIUM battery is designed with great pack construction, electronics and performance to optimize work per charge and work over pack life. It offers 3 Ah of runtime. With built-in Milwaukee durability, this battery runs cooler and performs in climates below 0 deg F/-18 deg C. Managed by Milwaukee's exclusive REDLINK intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. The temperature management system and individual cell monitoring help maximize battery life. Use this REDLITHIUM extended-capacity battery to power all of your Milwaukee M12 cordless power tools.